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TBA Mortgage Master

The most comprehensive Agency MBS settlement system in the market.

Ease-of-use tools for manual and fully automated processing of every TBA clearance and settlement workflow — straight pair-offs, SIFMA trade assignments, Tradeweb and Bloomberg round robins, and FICC EPN pool allocations — with real-time pool data validation behind every step.

Inside the platform

Run it no-touch. Step in by exception.

Set your clearance flows up once. TBA Mortgage Master runs them, surfaces only the exceptions, and keeps every counterparty on one source of truth.

  • AOT digital assignments — the first and only vendor system with Assignment-of-Trade automation.
  • No-touch round robins — the only system that executes on Tradeweb and books the trades back itself.
  • Validated EPN allocations — SIFMA rules checked against the full pool universe.
  • Exception-based color coding — work the breaks, not the queue.
  • Custom templates — standardize ops; proactive email alerts on every run.
  • Megas & non-TBA-eligible — handled with the same workflow.
TBA Mortgage Master — EPN allocations blotter
TBA Mortgage Master EPN allocations blotter showing pair-off and match amounts
Round robin assignment screen in TBA Mortgage Master
No-touch round robin assignment
Outbound integration messages with status tracking
Outbound integration message tracking
EPN inbound message blotter color-coding settings
Exception-based EPN color coding
Pair-off processing and run job history
Automated pair-off processing
Email automation log for trade assignment agreements
Email automation & delivery log
Trade Assignment Agreement generated by TBA Mortgage Master
Auto-generated assignment agreements

Screenshots from TBA Mortgage Master in production.

Assignment of Trade

Five pages of paper, generated in seconds.

A manager rolls a TBA position. Because of best execution, the closing trade is often with a different dealer than the opening one, so the two sides cannot simply net. The fix is to assign one trade to the other.

Why it has stayed manual

That assignment is a five-page legal document. Historically it gets drafted by hand and chased by email. SIFMA rules allow up to 12 hours for it to reach the third dealer, and firms send when they process, so the delay often runs the full window. Late AOT reporting has been a persistent source of risk in this market for exactly that reason.

What TBA Mortgage Master does

The assignment is generated and delivered within seconds of the offset. Notifications go out automatically, and every digital assignment is stored for future reference. Nobody processes the paper. AFS remains the first and only vendor with Assignment-of-Trade automation.

See how assignments work on the network →
Round robins

We do not prepare the round robin. We execute it.

Every other system helps an operations team assemble a round robin and hand it to a trader to execute. TBA Mortgage Master connects directly to Tradeweb, executes the round robin itself, and books the executed trades straight back into the system, where they carry on through clearance and settlement. It is a closed loop, and no one on the trading desk is in it.

Off the trading desk entirely

Round robins are operational work that has historically consumed front-office time. When the system executes them, that time goes back to trading.

Run right up to the cut-off

Automation means you are not starting early to leave room for manual work. Offsets can keep running against the deadline rather than against somebody's capacity.

Nothing gets missed

Every eligible offset is processed. There is no queue to work through and no trade left behind because the day ran out.

When to use an assignment instead →
Differentiators

Why specialists choose it over a general-purpose module.

FICC-approved EPN vendor

A higher degree of sophistication than legacy systems when moving pools — validated against the agency pool universe.

Real-time pool data

Factors from ICE Mortgage Technology validate EPN allocations and any TBA stipulations that scope delivery.

Built by MBS operators

Founded in 2006 by partners from investment management, clearance & settlement, and software.

See how it fits your stack →
The MBS Ops Network

One network where every counterparty connects.

The MBS Ops Network is a cloud-based ecosystem where all mortgage trading counterparties connect to a central network to process and communicate on the clearance and settlement of trade-for-trade TBA trades — automating the buy-side to sell-side clearance data flows while adhering to SIFMA guidelines.

Always

Pair-offs

Always performed, no cut-off.

72hr

Assignment of Trades

Optional, 72-hour day cut-off.

48hr

Round Robins

Optional, 48-hour day cut-off.

48hr

EPN Allocations

DTCC EPN on the 48-hour day.

Click here for more details

See TBA Mortgage Master on your workflows.

30 minutes. A specialist, not a script.