39 posts tagged “kalshi”.
ZenHodl: $3.12B headline notional vs $1.48B taker cash across 15,808,966 Kalshi sports prints we captured (May 15 - Sep 6, 2026).
Compare Telonex's advertised historical feeds with ZenHodl's dated Polymarket and Kalshi archives, including prices, sampling and timestamp limits.
PMXT offers live access and historical data. Compare its free archive and hosted API with ZenHodl’s fixed sports files using schemas, clocks and coverage.
Learn a four-step audit to find capture gaps in any market-data archive: derive coverage, dark time and cadence from the rows, not the README.
Recount the $9 Kalshi tryout's pinned release and explore recorded spreads, book changes and taker flow, with clear clock and coverage limits.
Compare PolymarketData's API and export options with ZenHodl's dated prediction-market archives, using documented clocks, coverage and licensing.
A dated two-day Kalshi study buckets 553,843 sampled quotes by recorded best-level notional. These are liquidity buckets, not order-size or fill-cost tests.
We ran the numbers on our own $9 MLB matched-book tryout: cross-venue spread, a shared capture gap, and why a settlement-label check isn't a prediction.
Evaluate a Kaggle upload against ZenHodl's recorded prediction-market archives using field definitions, clocks, coverage, settlement and license requirements.
Polymarket combos have no public listings, no order book, and no trade feed. We reconstructed the entire market from on-chain data — ~$9.5M of parlay...
An October 2026 snapshot of ZenHodl’s Polymarket, Kalshi, MLB and combo releases, with exact catalog counts, distinct clocks and measured capture limits.
Buy just the Kalshi order-book slice you study: ATP/WTA/ITF tennis, MLB, WNBA, or LoL/CS2 esports — $39 each, same live capture as the full tape.
A practical guide to ZenHodl's recorded Kalshi L2 depth and deduplicated trade prints: what the fields mean, what the sample checks, and the hard limits.
Corrected Oct 2026: a five-sport study reverses this MLB study's 32-second direction, and 1-second data shows the venues move within ~1 s.
Compare official history, free recorded books and ZenHodl archives. Check dates, depth, clocks, matching rules and license before choosing data.
Review a historical MLB Brier-score analysis with corrected interpretation of calibration, repeated snapshots and near-terminal reference prices.
A June 2026 MLB capture reported similar quoted spreads and different recorded depth. Review the sample limits, level cap and statistical interpretation.
The same game trades on Polymarket and Kalshi, so there must be free cross-venue arbitrage, right? A sampled MLB matched book shows how rare positive...
Corrected Oct 2026: a larger five-sport study reverses this June pilot's 32-second direction; 1-second data shows the venues move within ~1 s.
Find recorded Polymarket books through official data, free archives or paid files. Check the exact fields, clocks, captured window and gaps first.
How to measure closing line value for prediction markets and sportsbooks, with buy/sell signs, a worked example, formula, and ZenHodl's dated evidence.
Checked examples for independent −110 legs: combined payout, implied probability and expected stake loss. Distinguish probability gaps from ROI and...
Separate International referrer fee-sharing from Polymarket US promotional trading credits. No invented welcome amount, airdrop or deposit-bonus claim.
Read Kalshi’s account-specific referral requirements. Code-entry timing, verification, qualifying activity and credit expiry matter more than an...
A worksheet for comparing cash, credits and referrer rewards. Distinguish Kalshi account offers, International fee-sharing and Polymarket US trading credits.
Polymarket US and Polymarket International are separate products. Read the CFTC designation record, the International restriction and the current US...
Use Kalshi’s current eligibility, identity and bank-deposit documentation. Separate account approval, trading balance, settled funds and referral conditions.
Compare Polymarket US/International, PredictIt, Manifold, Robinhood and ForecastEx by product structure. Corrected current official records and terms...
Kalshi combos are dedicated markets priced through RFQs. Learn joint-probability math, product-of-leg settlement and why a DNP is not automatically a refund.
Distinguish Polymarket US from International, then compare matching sports contracts by rules, executable prices, size, fees and captured evidence.
Read a multi-candidate MVP market without confusing quoted prices with true probabilities. Check settlement rules, basket costs, depth and fees.
Calculate Kelly fractions for a binary contract with checked Python examples. Separate assumed probability, acquisition costs, fractional sizing and risk.
Worked bonus examples distinguish a cash credit from a stake-not-returned bonus bet, with explicit probability, odds and rollover assumptions.
Understand $1 contracts, executable bids and asks, gross break-even probabilities, fees and settlement rules using a hypothetical sports example.
A 2026 investigation of insider trading in prediction markets. We examine the 2024 Polymarket election dispute, academic studies of PredictIt...
Official product facts for Kalshi, Polymarket US/International, PredictIt, Manifold and ForecastEx. Compare access, contract mechanics, cost and evidence...
Prediction market APIs compared: Polymarket CLOB, Kalshi REST, ESPN scoreboard/summary endpoints, The Odds API, auth, fees, rate limits, and Python.
Compare sportsbook feeds, exchange APIs and prediction APIs using official pricing, coverage and interface documentation; distinguish refresh intervals...
We backtested 237 trade signals with and without execution constraints. 99% of theoretical profit vanished. Here's what actually kills your trades — and...