Tag Archives: wilmott

My columns published in the Wilmott Magazinea well-known publication targeted at quantitative finance professionals.

Where to Go from Here?

We started this long series with a pitch for my book, Principles of Quantitative Development. This series, and the associated eBook, is an expanded version of the non-technical introductory chapters of the book — what are the things we need to keep in mind while designing a trading platform? Why is it important to know the big picture of finance and banking? Hopefully, these posts have given you a taste of it here. If you would keep a copy of the series handy, you can purchase and download the beautifully crafted eBook version.

Further steps

We went through the structure of the bank from the exotic and structured trading perspective. We talked about the various offices (Front Office, Middle Office and Back Office) and pointed out the career opportunities for quantitative professionals within. The organizational structure of the bank is the apparatus that processes the dynamic lifecycle of trades.

If the structure of the bank is akin to the spatial organization, the lifecycle of the trade is the temporal variation; their relation is like that of the rails and the trains. We spent quite a bit of time on the flow of the trades between the front office and middle office teams, how the trades get approved, processed, monitored, settled and managed. Each of these teams has their own perspective or work paradigm that helps them carry out their tasks efficiently.

Trade Perspectives was the last major topic we touched upon. As we saw, these perspectives are based on the way the various teams of the bank perform their tasks. They form the backdrop of the jargon, and are important if we are to develop a big-picture understanding of the way a bank works. Most quants, especially at junior levels, despise the big picture. They think of it as a distraction from their real work of marrying stochastic calculus to C . But to a trader, the best model in the world is worthless unless it can be deployed. When we change our narrow, albeit effective, focus on the work at hand to an understanding of our role and value in the organization, we will see the possible points of failure of the systems and processes as well as the opportunities to make a difference. We will then be better placed to take our careers to its full potential.

Other Trade Perspectives

In the previous posts, we saw how various teams view the trading activity in their own work paradigm. The perspective that is most common in the bank is still trade-centric. In this view, trades form the primary objects, which is why all conventional trading systems keep track of them. Put bunch of trades together, you get a portfolio. Put a few portfolios together, you have a book. The whole Global Markets is merely a collection of books. This paradigm has worked well and is probably the best compromise between different possible views. The trade-centric perspective, however, is only a compromise. The activities of the trading floor can be viewed from different angles. Each perspective has its role in how the bank works.

Other perspectives

From the viewpoint of traders, the trading activity looks asset-class centric. Typically associated with a particular trading desks based on asset classes, their favorite view cuts across models and products. To traders, all products and models are merely tools to make profit.

IT department views the trading world from a completely different perspective. Theirs is a system-centric view, where the same product using the same model appearing in two different systems is basically two completely different beasts. This view is not particularly appreciated by traders, quants or quant developers.

One view that the whole bank appreciates is the view of the senior management, which is narrowly focussed on the bottom line. The big bosses can prioritise things (whether products, asset classes or systems) in terms of the money they bring to the shareholders. Models and trades are typically not visible from their view from the top — unless, of course, rogue traders lose a lot of money on a particular product or by using a particular model.

When the trade reaches the Market Risk Management, there is a subtle change in the perspective from a trade-level view to a portfolio or book level view. Though mathematically trivial (after all, the difference is only a matter of aggregation), this change has implications in the system design. The trading platform has to maintain a robust hierarchical portfolio structure so that various dicing and slicing as required in the later stages of the trade lifecycle can be handled with natural ease.

When it comes to Finance and their notions of cost centers, the trade is pretty much out of the booking system. Still, they manage trading desks and asset classes cost centers. Any trading platform we design has to provide adequate hooks in the system to respond to their specific requirements as well. Closely related to this view is the perspective of Human Resources, who decide incentives based on performance measured in terms of the bottom lines at cost-center or team levels.

Middle Office

The perspective employed by the Middle Office team is an interesting one. Their work paradigm is that of queues running in a first-in, first-out mode. As shown in the picture below, they think of trades as being part of validation and verification queues. When a new trade is booked, it gets pushed into the validation queue from one end. The Middle Office staff attacks the queue from the other end, accepting or rejecting each entry. The ones deemed good get into a second verification queue. The bad ones are returned to the trading desks for modifications in the trade entries or possible cancellations.

Middle Office perspective

A similar paradigm is employed in dealing with market operations such as fixing rates, generating cash flow etc. Market operations have their own two-stage queues. Note that the whole flow is to be facilitated by the trading platform, which should have the capability to render different views. It presents a queue-based view of the data to the middle office staff, and a report-based view to the Market Risk Management team, for instance, or a trade-centric view to most of the other teams. It is important to each team to have a basic grasp and healthy respect for the work paradigm of the other so that they can communicate efficiently with each other. It is no good ignoring the trade perspectives of the rest of the bank. After all, such trade perspectives evolved naturally out of years and years of trial and error.

Quant Developers

Unlike quants, quantitative developers are more product-centric. Their job is to take the pricing models (the output of the quant effort) and make them deployable and accessible to the traders, sales teams and the middle and back offices. ان کا کام کا بنیادی یونٹ ایک پروڈکٹ ہے کیونکہ جب مصنوع کی تعریف بدل جاتی ہے,,en,اس سے قطع نظر کہ یہ ایک نیا یا موجودہ قیمتوں کا نمونہ استعمال کرتا ہے,,en,انہیں اس کو سسٹم میں ضم کرنا ہوگا,,en,یہاں تک کہ اگر یہ محض ایک مصنوعات کی مختلف حالت ہے,,en,انہیں تمام بنیادی ڈھانچے کو نافذ کرنا ہوگا اور اس کی بہاو کو سنبھالنے کے لئے منظوری کے عمل کا خیال رکھنا ہوگا,,en,کام کی مثال جو ایک مقداری ڈویلپر کے لئے زیادہ تر سمجھ میں آتی ہے وہ مصنوعاتی ہے,,en,ڈویلپر کا مقدار,,en,مقدار کے مقابلے,,en,مقداری ڈویلپرز فرنٹ آفس اور مڈل آفس میں روزانہ کی سرگرمیوں کے قریب تر ہیں,,en,وہ تجارت کو دیکھتے ہیں,,en,منفرد شناختوں کے ذریعہ شناخت کی گئی,,en,مصنوعات کی فوری طور پر,,en,ایک بار بک کرلی,,en,وہ تجارت کے پلیٹ فارم ڈیٹا بیس میں اختیاری اشیا کے ساتھ الگ الگ اشیاء کے طور پر ختم ہوتے ہیں,,en,تجارت کے ان پٹ کے علاوہ,,en, regardless of whether it uses a new or an existing pricing model, they have to integrate it into the system. Even if it is merely a product variant, they have to implement all the infrastructure and take care of the approval processes for its downstream handling. For this reason, the work paradigm that makes most sense to a quantitative developer is product-centric.

Quant developer perspective

Compared to the quants, the quantitative developers are closer to the day-to-day activities on Front Office and Middle Office. They view the trades (identified by unique IDs) as instantiations of products. Once booked, they end up in the trading platform database as distinct objects with attributes defined in trade inputs. In addition to trade input, وہ تجارت کی شکل میں کسی مصنوع کی قیمت لگانے کے لئے مارکیٹ ڈیٹا فیڈز کا استعمال کرتے ہیں,,en,تجارتی پلیٹ فارم ایک قیمتوں کا تعین انٹرفیس کے ساتھ آتا ہے جو تجارتی معلومات اور مارکیٹ کے ڈیٹا کو یکجا کرتا ہے,,en,یہ وہی بیچ موڈ کہتے ہیں جس میں چلتا ہے,,en,دن کے مقررہ وقت پر باقاعدگی سے تمام تجارتوں کی قیمتوں اور حساسیتوں کا حساب لگانا,,en,چونکہ یہ بیچ کام انجام دینے والا تجارتی پلیٹ فارم ہے,,en,مقداری ڈویلپرز وابستہ وسائل جیسے گرڈ کمپیوٹنگ پلیٹ فارم کا خیال رکھ سکتے ہیں,,en,مارکیٹ ڈیٹا فیڈ,,en,تجارتی ڈیٹا بیس وغیرہ,,en,اس لحاظ سے,,en,ان کی مصنوعات پر مبنی نقطہ نظر تجارتی مرکوز نقطہ نظر میں مختلف ہوسکتا ہے,,en,کتنے؟,,ca,اگر آپ ایک مقدار ہیں,,en,آپ ریاضی یا طبیعیات میں اعلی درجے کی حامل ریاضی دان ہیں,,en,آپ کا کام علمی تحقیق اور پیشہ ورانہ دونوں پر مبنی ہے,,en,ہم مرتبہ جائزہ اشاعتیں,,en. The trading platform comes with a pricing interface which combines trade information and market data. It also runs in what they call batch mode — regularly at a given time of the day to compute prices and sensitivities of all trades. Since it is the trading platform that performs the batch job, the quantitative developers may take care of the associated resources like the grid computing platforms, market data feeds, trade databases etc. In this respect, their product-centric perspective may get diffused into a trade-centric view.

Quants

If you are a quant, you are a mathematician with an advanced degree in mathematics or physics. Your work is based on both academic research and professional, peer-reviewed publications. آپ ان پٹ ان سے لیتے ہیں,,en,اسٹاکسٹک قیمتوں کا نمونہ پیش کرنے کے ل your اپنی خود کی مضبوط ذہانت کا اطلاق کریں جو آپ کے خیال میں مصنوعات کی ایک کلاس کے لئے غیر معمولی حد تک بہتر کام کریں گے۔,,en,آپ کو مصنوعات کی تفصیلات کی بھی ضرورت ہوگی,,en,آپ کی پیداوار ہے,,en,آپ کی اپنی قیمتوں کا تعین کرنے والا ماڈل,,en,یا ادب سے قیمتوں کا تعین کرنے والے ماڈل کا نفاذ,,en,یہ آپ کا بنیادی کام کا یونٹ ہے,,en,نقطہ نظر کے لئے کے طور پر,,fr,تاکہ قیمتوں کا تعین کرنے والے اس ماڈل کا استعمال کیا جاسکے,,en,اسے توثیق کرنا پڑے گا,,en,اس کے بعد قیمتوں کا تعین کرنے والے ماڈل کا استعمال کرتے ہوئے مصنوعات کا ایک سیٹ تعریف اور منظوری کے لئے پیش کیا جائے گا,,en,ایک بار منظوری دے دی,,en,تجارتی آدانوں اور مارکیٹ کے اعداد و شمار کی مدد سے,,en,ہر ایک مصنوعات کی قیمت لگائی جاسکتی ہے اور اسے تجارتی پلیٹ فارم میں بُک کیا جاسکتا ہے,,en,لیکن اس طرح کی سرگرمیاں دلچسپی اور مقدار کے اثر و رسوخ سے باہر ہیں,,en,ان کے لئے,,en, apply your own formidable intelligence to come up with a stochastic pricing model that you think will work exceptionally well for a class of products. You will also need the details of the products. Your output is, of course, a pricing model of your own, or an implementation of a pricing model from the literature. This is your primary work unit.

Quant perspective

In order to make use of this pricing model, it will have to be validated. Then a set of products using the pricing model will be defined and submitted for approval. Once approved, with the help of trade inputs and market data, each of the products can be priced and booked into the trading platform. But such activities are outside the sphere of interest and influence of the quant. To them, کسی مصنوع کو کس طرح تجارت میں داخل کیا جاتا ہے وہ بالکل غیر متعلقہ اور معمولی بات ہے,,en,یہ صرف قیمتوں کے ماڈل میں تجارت اور مارکیٹ کے آدانوں کی وضاحت کرنے کا سوال ہے,,en,یہاں تک کہ مختلف مصنوعات کس طرح اخذ کی جاتی ہیں یہ مکینیکل ہے,,en,اور تمام,,en,قیمتوں کا تعین ماڈل میں کام کیا جاتا ہے,,en,یہ تناظر,,en,اگرچہ ایک مقدار کے لئے درست اور فعال ہیں,,en,باقی بینک کے نظارے سے بہت دور ہے,,en,یہی وجہ ہے کہ بعض اوقات صنعت کے ساتھ رابطے سے دور رہنے کی مشکوک ساکھ حاصل ہوتی ہے,,en,بات اتنی زیادہ نہیں ہے کہ انہیں اپنا نقطہ نظر تبدیل کرنا پڑے گا,,en,لیکن انہیں اس بات کی تعریف کرنی چاہئے کہ دوسرے کاروباری اکائیوں کے ساتھ بھی وہی برابر جائز نقطہ نظر رکھتے ہیں جن سے وہ تعامل کرتے ہیں,,en,اور ان کو جاننے کی کوشش کریں,,en,تجارتی نقطہ نظر,,en,اس پوسٹ سیریز کا آخری حصہ تجارتی نقطہ نظر پر ہے,,en. It is merely a question of specifying the trade and market inputs to the pricing model. Even how various products are derived is mechanical, and all the “real” work is done in the pricing model.

This perspective, though accurate and functional for a quant, is pretty far removed from the view of the rest of the bank, which is why quants sometimes have the dubious reputation of being out of touch with the industry. The point is not so much that they have to change their perspective, but they should appreciate that there are other equally valid perspectives held by other business units they interact with, and make an effort to know them.

Trade Perspectives

The last section of this post series is on trade perspectives. In fact, بینک کے مستحکم ڈھانچے اور تجارت کے وقتی ارتقا کے بارے میں ہمارے پہلے حصے اس آخری حصے کی تیاری میں ہیں,,en,اگلی دو پوسٹوں میں,,en,ہم دیکھیں گے کہ کس طرح مقدار,,en,مقداری ڈویلپرز اور درمیانی دفتر کے پیشہ ور افراد,,en,اور آرام,,en,تجارت اور تجارتی سرگرمی دیکھیں,,en,ان کے خیالات اہم ہیں اور کسی بھی تجارتی پلیٹ فارم کے ڈیزائن فلسفہ میں ایڈجسٹ کرنے کی ضرورت ہے,,en,یہ نقطہ نظر کہاں سے آتا ہے اور ہمیں ان کے بارے میں جاننے کی کیا ضرورت ہے,,en,تجارتی نقطہ نظر ہر کاروباری یونٹ کے لئے مخصوص کام کی نمونہ پر مبنی ہوتا ہے,,en,اس وجہ سے کہ ایک گروہ تجارتی سرگرمی کے کس پہلو پر فوکس کرتا ہے,,en,وہ ایک مثال تیار کرتے ہیں,,en,یا ذہنی نمونہ,,en,جو ان کے لئے بہترین کام کرتا ہے,,en,تاکہ سمجھنے کے ل.,,en,آئیے ایک نظر ڈالیں کہ ہم جدید پرسنل کمپیوٹر کے ساتھ کس طرح کام کرتے ہیں,,en. In the next couple of posts, we will see how the quants, quantitative developers and the middle office professionals (and the rest) see trades and trading activity. Their views are important and need to be accommodated in the design philosophy of any trading platform.

Where do these perspectives come from and why do we need to know about them? Trade perspectives are based on the work paradigm specific to each business unit. Because of what aspect of the trading activity a group focuses on, they evolve a paradigm, or a mental model, that works best for them.

In order to understand, let’s take a look at how we work with a modern personal computer. ہمارے ساتھ پیش کردہ نمونہ ایک ڈیسک اور فائلنگ کابینہ میں سے ایک ہے,,en,تو ہمارے پاس ایک ڈیسک ٹاپ ہے,,en,فولڈرز اور فائلیں,,en,وہ اب ہمارے ل so قدرتی ہوچکے ہیں کہ ہم کسی بھی کمپیوٹر سے بات چیت کرنے کا ایک اور طریقہ تصور بھی نہیں کرسکتے ہیں,,en,انٹرنیٹ,,en,ایسی چیز کی مثال ہے جو ہم پر منڈلاتی ہے,,en,یہی وجہ ہے کہ ہم,,en,نیچے,,en,اس سے سامان لادیں اور,,en,اوپر,,en,اس میں سامان لادیں,,en,لیکن ایسے نمونے تیار کرنے والے پروگرامر اور معمار اکثر مختلف اور کم معروف نمونوں کے ساتھ بھی کام کرتے ہیں,,en,مثال کے طور پر ہمارے پاس بندرگاہیں ، ساکٹ اور اسٹریمز وغیرہ ہیں,,en,اگر ہم کام کی مثال کی تعریف نہیں کرتے ہیں,,en,ہمیں اس جرگان کو مل جائے گا جو اس کے ساتھ پراسرار اور سمجھ سے باہر ہے,,en,یہ خاص طور پر سچ ہے اگر ہم نے ایسے منصوبوں پر کام کرنا ہے جو متعدد کاروباری اکائیوں کو مختلف نمونوں سے کم کرتے ہیں,,en. So we have a desktop, folders and files. They have become so natural for us now that we cannot imagine another way of interacting with a computer at all. The Internet, on the other hand, is built on a paradigm of something that hovers over us, which is why we “down”-load stuff from it and “up”-load stuff into it. But the programmers and architects who develop such paradigms often do work with different and less known paradigms as well; for instance we have ports and sockets and streams and so on.

If we do not appreciate the work paradigm, we will find the jargon that comes with it mysterious and incomprehensible. This is especially true if we are to work on projects that cut across multiple business units with differing paradigms.

Trade perspectives

To illustrate it further with an example from our trading world, let’s look at how we identify a trade. The quants really do not care about the trade identification number; for them, it is the pricing model that is the basic unit that they work with. The quantitative developer, on the other hand, would like the identifier to be something unique per trade. A structurer would like to have one identifying reference for the trade with possible sub IDs for the individual sub trades that make up a structure. While this requirement is easy enough to implement, سافٹ ویئر فن تعمیر کو بھی تجارت منسوخی اور فرنٹ آفس اور مڈل آفس سے ترمیم کی ضروریات کو پورا کرنا پڑتا ہے,,en,جب کسی ڈھانچے میں ترمیم یا منسوخ ہوجائے تو کیا ہوتا ہے,,en,ہم کس طرح سے متعلقہ تجارت کو ڈھونڈتے ہیں اور کس طرح نمٹاتے ہیں,,en,یہ مسئلہ تقریبا ہمیشہ ختم ہوجائے گا ڈیٹا بیس میں ایک لنک ID کی ضرورت ہوتی ہے,,en,رواں معاہدے پر تجارتی نمبر میں ترمیم دستاویزات اور کارروائیوں کے عملے کے لئے بھی مسئلہ پیدا کرتی ہے,,en,جو ہر تجارت کے ساتھ منسلک ایک اور غیر متناسب بیرونی حوالہ نمبر کا مطالبہ کرسکتا ہے,,en,آڈٹ کے لئے ہر چیز پر سالمیت اور لاپرواہی درکار ہوگی,,en,ڈیٹا بیس ریکارڈ کی نقل کا مطالبہ,,en,جیسا کہ ہم دیکھ سکتے ہیں,,en. What happens when a structure is modified or canceled? How do we find and deal withall the related trades? This problem will almost invariably ends up requiring a link ID in the database. Trade number amendments on a live deal create problem for documentation and operations staff as well, who might demand another immutable external reference number attached each trade. Audit will require integrity and indelibility on everything, demanding database record duplication. As we can see, ہر کاروباری یونٹ کے نقطہ نظر اور کام کی تمثیلیں بنیادی سطح پر پروگرام کے ڈیزائن پر متضاد تقاضوں کا ترجمہ کرتی ہیں,,en,یہی وجہ ہے کہ ہم اس سلسلے کی مندرجہ ذیل اشاعتوں میں تجارتی نقطہ نظر کو قریب سے دیکھیں گے,,en,خلاصہ,,en,تجارت کی زندگی,,en,اس کے ساتھ ہی ہم تجارتی زندگی پر اپنی بحث کے اختتام پر پہنچ گئے ہیں,,en,ہم نے تجارت سے قبل کی سرگرمیوں کے بارے میں بات کی جیسے قیمتوں کا تعین کرنے والے ماڈل پر مقدار کام,,en,اور ایک آزاد ٹیم کے ذریعہ اس کی توثیق,,en,ہر تجارت کی بنیاد پر,,en,ہمارے پاس سیلز اور کریڈٹ چیک کی سرگرمیاں ہیں,,en,ایک بار تجارت شروع کردی جائے,,en,یہ مڈل آفس کے ذریعہ ابتدائی توثیق کے کام سے گزرتا ہے,,en,ٹیموں کی ایک بڑی تعداد کے ذریعہ باقاعدہ پروسیسنگ کے بعد,,en. It is for this reason that we will take close look at the trade perspectives in the following posts of this series.

Summary — Life of a Trade

With that we have come to the end of our discussion on trade lifecycle. We talked about pre-trade activities such as the quant work on pricing model, and its validation by an independent team. On a per-trade basis, we have the sales and credit check activities. Once a trade is initiated, it goes through the initial validation work by Middle Office, followed by regular processing by a large number of teams, جیسے حدود کی نگرانی اور رپورٹنگ کے لئے مارکیٹ رسک مینجمنٹ,,en,تشخیص کی جانچ پڑتال اور ریزرو حساب کے لئے پروڈکٹ کنٹرول,,en,اور ہیج ریبلنسنگ اور رسک مینجمنٹ کے ل trading ٹریڈنگ ڈیسک,,en,تجارت کی زندگی کے خاتمے کے مرحلے کے دوران,,en,یہ بیک آفس ٹیمیں ہیں جو بستیوں اور رپورٹنگ میں سرگرم ہیں,,en,تجارتی زندگی کا خلاصہ,,en,زیادہ تر سرگرمیاں,,en,خاص طور پر ابتداء کے دوران اور تجارت کے خاتمے تک,,en,تجارتی پلیٹ فارم عمل میں ثالثی اور ایک کاروباری یونٹ سے دوسرے کاروبار تک پہنچانے میں اہم کردار ادا کرتا ہے,,en,لیکن یہ مختلف کاروباری یونٹ اپنے اندراج شدہ کام کے نمونوں کے ساتھ کام کرتے ہیں,,en,اور ایک تجارت کیا ہے یا ان کے کام میں کیا شامل ہے اس بارے میں ان کا نظریہ ایک دوسرے سے یکسر مختلف ہوسکتا ہے,,en, Product Control for valuation checks and reserve calculations, and trading desks for hedge rebalancing and risk management. During the termination phase of the life of a trade, it is the back office teams that are active in settlements and reporting.

Trade lifecycle summary

As we saw, most of the activities, especially during the inception and up to the termination of a trade, the trading platform plays a crucial role in mediating the processes and conveying the trade from one business unit to the next. But these different business units work with their own entrenched work paradigms, and their perspective on what a trade is or what their work involves can be radically different from one another. چونکہ تجارتی پلیٹ فارم متعدد ٹیموں میں کمی کرتا ہے,,en,اس کو ان مختلف تناظر کو پورا کرنا ہے,,en,جو اگلی پوسٹ شروع ہونے والے اس سلسلے کا آخری سیکشن ہے,,en,مقدار کی فنانس آرکائیو,,en, it has to cater to these differing perspectives, which is the last section of this series starting the next post.

Termination

The last lifecycle event of a trade is, of course, its termination. It can be triggered for a variety of reasons. Whatever the reason may be, when a trade is terminated, it calls for settlements and documentation archival by Back Office. In addition, it may trigger public disclosures (in an aggregate form) by Finance, and incentive adjustments by Human Resources.

The common reasons for trade termination and the workflow it triggers are depicted in the figure below.

Trade termination

  • Trade Maturity: When a trade or an option reaches maturity, it gets terminated, which is the most uneventful mode of trade termination.
  • Option Exercises: If the bank or its counterparty exercises an option, it gets terminated. Exercises can take place any time during the lifetime of a trade, or only on specific dates, depending on the termsheet description of the product involved.
  • Barrier Breaches: Barrier options (or knock-in and knock-out options) may breach the pre-defined barriers and may get terminated generating settlements or new trades.
  • Target Triggers: Instruments that accumulate toward a target (such as range accruals or target redemption forwards) may get terminated when the target is reached.
  • Trade Novation: Novation is the special process by which the trade counterparty changes. In effect, the original counterparty sells the the trade or the option to another one. When a novation happens, the original trade is terminated and a new one initiated with special characteristics.

Validation and Processing

Once a trade is booked into the trading platform database, it triggers a whole chorus of validation and daily processing. The validation process is a to-and-fro dance between the trading desks in Front Office and the control units in Middle Office, all mediated by the trading platform. The traders may insert a trade on an experimental basis. Once they are convinced that it is a viable trade, they push it to a confirmed state, which will be picked up by the treasury control unit. If the traders decide to discard the trade, the trade ends up in the trash pile (but never deleted permanently). The control unit typically works in a four-eye, double validation mode. They verify the trade inputs, and control limits such as the number of trades allowed for a particular product. If the trade passes their tests, they set its status to a validated state, which triggers a second level of checking. If the trade fails either level, they are pushed back into a state that allows the traders to either amend it or discard it.

Trade validation

Once the trade is fully validated, the processing part begins. It involves multiple teams and multiple perspectives, starting from how a trade should be identified to what the basic information unit that should be identified.

Daily Processing

As shown in the figure above, regular processing takes place in various business units.

  • Trading Desks monitor trades for hedging and rebalancing, monitoring profit and loss (P/L), and staying within the risk limits. The senior traders get distilled information from the junior ones through this regular processing and take appropriate actions.
  • Middle Office plays a crucial role in regular process. They monitor target and barrier breaches, rate fixings and option exercises, cash flow generation, and spawning other cash trades. They generate (with the help of the trading platform) appropriate accounting triggers for Back Office to act on, in order to perform settlements, trade confirmation, documentation archival etc.
  • Product Control is another business unit embedded within the middle office that actively monitor the P/L on a daily basis, with a view to explaining their movements based on the sensitivities and market movements, providing an independent computation of the profitability of the trading activity. Their computations of reserves feed into the finance and human resources departments and affect trader incentives and compensation.
  • Market Risk Management also has hordes of staff employed to perform daily monitoring of trading limits (such as notionals, delta-equivalents etc.) as well as VaR computation, Stress VaR tests. In most banks, they also handle compliance reporting to regulatory authorities and provide concise and actionable intelligence to the upper management who decide the trading strategies.

As we shall soon see, the different and specific focus of each business unit demands a unique projection (which we will call a perspective) of the trading information from the trading platform. This requirement is one of the things that make its design and implementation so challenging.

Trade Inception

The inception events of a trade can be classified into two categories. The pre-trade activities are those that have to take place even before the first trade is booked. The per-trade inception activities are the ones specific to each trade.

Pre-trade activities

The pre-trade activities are related to new product on-boarding and approval. As we saw, in-house trading platforms are designed to be nimble and responsive. In principle, it should take little time for a new product to be on-boarded. The last system I worked on, for instance, was designed to deploy a new product idea in a matter of minutes. But the architects of such systems tend to forget the human, process-related and control elements involved in it. As the slide above illustrates, a new product idea or a new pricing model originates from the work of a model quant or a structurer in Front Office. But before it gets anywhere near a production system, the pricing model needs to be validated, typically by the analytics team in the Middle Office risk management group. Once validated, the product goes through a tortuous approval process that may take weeks or months, and then a formal deployment process, which may again take weeks or months. When that process is completed, the product is available for trading in the trading platform.

Once available, the product can be instantiated as a trade. Each trade instance goes through its own validation and approval process. The trade request may originate from the sales or structuring team in Front Office. They will also prepare the term sheet and other legal documents. Once these tasks are completed, a trade is booked into the trading platform.

Per-trade process

These inception events are depicted in the second slide above. One of the crucial steps in the approval process is the credit control. As we described earlier, the credit risk management team uses a variety of tools to assess the risks involved. With their approval, and with the traders understanding of the market price of the product, a product available in the trading platform becomes a trade in the database. And the lifecycling fun begins.