What is EventArb?
Select venues and prices, add market legs and enter principal and days to completion. The interface provides sharing and How to Guide/The Math explanations, so assumptions can be inspected rather than reading a result alone.
The calculator neither places nor synchronizes orders. Similar names do not establish compatible settlement, and both prices and size can change before execution. The worked 45¢ YES/50¢ NO example is illustrative, not a live offer.
Who it is for
- Checking cross-venue arithmetic.
- Comparing outcome structures.
- Studying capital lockup time.
Features and coverage
- Venues
Compare supported markets.
- Structure
Binary or multiple-choice outcomes.
- Legs
Add markets to a scenario.
- Principal
Set the capital amount.
- Duration
Enter days to completion.
- Fees
Calculator-described fee-inclusive spreads.
- Method
How to Guide and The Math.
- Sharing
Share a scenario through the interface.
Workflows with EventArb
Check a spread
Enter prices/capital and inspect fee assumptions.
Compare capital use
Change duration with constant prices.
Validate structure
Read every contract's resolution before treating legs as complementary.
Pricing and total cost
The public calculator is free. It displays an optional donation link and free arbitrage-alert signup.
Getting started
Before you start: Settlement differences can invalidate apparent complements.
- Select outcome structure.
- Enter days and capital.
- Choose venues and prices.
- Add legs.
- Calculate and read assumptions.
It does not place or synchronize orders.
Useful links
What to check
- Settlement differences can invalidate apparent complements.
- Prices and available size can change before execution.
A closer look
Ratings & reviews
User reviews 0
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A specific example helps the next person choose the right tool.
Related tools
Browse categoryFrequently asked questions about EventArb
Can I add multiple markets?
Yes.
Is duration included?
The form has days to completion.
Will it execute both legs?
No execution flow is shown.


