Liquidity & Pricing9 min read
How to Choose a Liquidity Provider Without Being Sold To
Fill quality, depth, failover and contract terms: a practical way to assess an LP beyond the headline spread.
BridgexFX editorial · 2026-09-01
Every LP presentation opens with the same slide: razor-thin EURUSD spreads in London hours. Your clients, though, will judge you on rollover, on NFP and on the 3am trade from your largest account. Picking an LP from the headline spread is a bit like buying a car from its top speed. This is how we would assess one if we were sitting on your side of the table.
You are buying fills, not quotes
The right questions are about behavior. What is typical slippage on market orders in calm and stressed markets? How many orders are rejected or requoted? What does the feed do in the five minutes around a major release? A provider showing 0.1-pip spreads with a 15% rejection rate costs you more than one showing 0.3 pips with 99% fills.
Ask for real execution statistics. Serious providers can share slippage distributions and fill rates. If all you receive is a London-session snapshot, treat that as an answer.
Look past the top of the book
For anyone doing real size, the best bid and offer matter much less than depth. How much can a client trade before the price moves against them? A shallow book with a tight top looks excellent in a table and costs your clients on every large order.
Check the depth ladder on your most-traded symbols and repeat it across sessions. Asian hours are where retail brokers often discover how real their LP's liquidity is, and if your clients trade then, you will hear about it.
Read the commercial terms slowly
Volume commitments, tiered pricing, setup fees, monthly minimums and termination clauses all deserve attention. LPs make money on commitments, so the usual trap is a volume tier you can't fill in year one, followed by penalty pricing that quietly eats your markup.
Negotiate for the business you are now, not the one you hope to be: short initial terms, realistic tiers and a clean exit. A relationship you can leave is oddly the one where the provider tries hardest.
Plan for the bad day
Brokers with one feed discover redundancy during the event they couldn't afford. You want at least two independent feeds with automatic failover, and you want to have tested the switch before you need it.
Ask each LP what happens when their own upstream fails, and ask your technology partner how quickly failover happens and what clients see while it does. Then rehearse. Surviving a flash event rarely comes down to spreads. It comes down to whether the second feed was already warm.
A trial that tells you something
Run two or three candidates on the same symbols, sessions and order types for at least a month that includes a major news cycle. Record slippage, fills, rejections and effective spread after your markup, by session and symbol.
Then speak to other brokers who use them, at your size, not the logos on the website. Ask about support at 2am, how disputes are settled and what changed after signing. Finally, repeat the exercise every year. The LP that suited $50M a month may not suit $500M.
The takeaway
Judge an LP on fills, depth and behavior in stress, not on the spread in the brochure. Sign terms you can grow into, build and test failover, and re-run the comparison every year.
#Liquidity providers#Execution quality#Contracts
Blog
Did this article spark an idea?
Let's scope it together, honestly and in writing.