Live data

Bid-Ask Spread Monitor
for Forex, Futures & Commodities

Real-time bid-ask spreads collected directly from IBKR TWS. Track EUR/USD, GBP/USD, Crude Oil, Gold, DAX and more — updated every 60 seconds.

33
Instruments tracked
60s
Update interval
IBKR TWS
Data source
Free
No account needed

Latest Article

New
I Treated Spread as a Detail for a Long Time. It Wasn't.
How historical spread data changes the way you think about execution costs — gaps, spikes, overnight moves, and why average spread is often the wrong metric.
Read article →

Detailed Spread All Data

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Detailed Spread 24h

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Average Spread (Mon–Fri 0:00–22:00)

Symbol Median Avg P95 P95 / ATR Samples
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Sunday Open Spread (first hour after Sunday Open)

Symbol Open Avg Spread Median Min Max Samples
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Sunday Open Gap (páteční close → nedělní open, mid cena, v jednotkách ceny)

Symbol Median gap Gap (p90 víkendů) Rozevření na stranu ⓘ
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Riziko rozevření (o kolik musí být SL / entry dál, aby ho rozevření nevyneslo)

Symbol Median Násobek (p90 noci) Rozevření na stranu ⓘ Nocí / hustých
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Market Open/Close Spread (every night incl. Sunday open — instrument-specific windows, Prague time)

Symbol Avg Spread Median Min Max Samples
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Frequently Asked Questions

Everything you need to know about bid-ask spreads and this tool.

The bid-ask spread is the difference between the highest price a buyer is willing to pay (bid) and the lowest price a seller is willing to accept (ask). Every time you open a trade, you effectively "pay" this spread — it's the primary transaction cost in Forex and Futures markets.
All spread data is collected in real-time from Interactive Brokers (IBKR) via TWS (Trader Workstation) using the ib_insync library. Bid and ask prices are sampled every 30 seconds and aggregated into 5-minute averages.
The dashboard refreshes automatically every 60 seconds. Raw data is collected every 30 seconds during market hours. Outside of trading hours some instruments show no quotes — this is expected.
Forex markets reopen on Sunday at 22:00–23:00 UTC after the weekend. Liquidity is very thin at that moment — fewer market makers are active, so the gap between bid and ask widens significantly. This is especially visible in GBP pairs, Gold and Silver. Spreads typically normalize within 30–60 minutes.
Yes, the dashboard is completely free. No account required.
Currently 33 instruments across: Forex majors (EUR/USD, GBP/USD, USD/JPY, AUD/USD, NZD/USD, USD/CHF, USD/CAD), Forex crosses (EUR/GBP, EUR/JPY, GBP/JPY), FX Futures (6E, 6B, 6J, 6A, 6S, 6N, 6C, RP, RY), Equity Futures (MES, NQ, DAX, ESTX50, GBL), Commodity Futures (CL, MCL, MGC, 1OZ, SI, ZW, MBT) and Metal CFDs (XAUUSD, XAGUSD).
Average spread is the arithmetic mean of all samples — it can be pulled upward by occasional spikes (e.g. during news events or low liquidity). Median is the middle value, so it better represents the "typical" spread you'll encounter during normal trading conditions. For most instruments the median is lower than the average.