Treasury Technology 101: What FX, Money Market, and Fixed Income Modules Actually Do
A plain-language guide to the core modules inside a bank's treasury system and how they work together.
By Analytics Nest Team, published 2026-09-10. Category: FINTECH.
What a treasury system is for
A bank's treasury manages liquidity, funding and market risk. Its technology platform records every deal the treasury makes, values those positions, tracks risk and sends the results to accounting and regulators. Most platforms are organized into modules, each covering one type of market.
Foreign exchange (FX)
The FX module handles currency deals such as spot trades, forwards and swaps. It captures each deal, calculates the bank's open position in every currency, revalues positions at current market rates and produces the settlement instructions for both sides of the trade.
Money market
The money market module covers short-term borrowing and lending, usually up to one year: interbank placements, deposits, call money and similar instruments. Its main job is to show how much cash the bank has, how much it owes and when, so the treasury can manage daily liquidity.
Fixed income
The fixed income module manages bonds and other debt securities. It tracks coupons and maturities, calculates yields and accrued interest, values the portfolio against market prices and measures interest-rate risk.
How the modules work together
- Front office captures deals and checks limits in real time.
- Middle office measures risk and profit and loss across all modules.
- Back office confirms, settles and posts each deal to accounting.
- Reporting combines everything for management and regulators.
When these modules share one data model, the treasury gets a single, accurate view of its position instead of reconciling spreadsheets at the end of each day.