{"sources": [{"url": "https://api.imd.fun/artifacts/41fa8829432f502a00c5302c0e2200b475c5c2e100a2a16b086aaab0ce62a395", "quote": "\"approach\": \"Graft without constant tuning onto crossing-cover artifact 40497298132dcc0ccc9f4c0672031c7eaae00ddcf8cf24983db989feeb3c5ca0. Spread 1: dmin=0.3 and pfl=0.000001. Spread 3: copy the supplied guarded, clipped-fill-corrected flow estimator and its five fixed parameters, scaling only the ti"}, {"url": "https://api.imd.fun/artifacts/40497298132dcc0ccc9f4c0672031c7eaae00ddcf8cf24983db989feeb3c5ca0", "quote": "\"approach\": \"Uses tiny tick probes, a sub-tick probability filter, and marginal retail-versus-arbitrage sizing to quote one tick inside the competitor. Starting from the exactly reproduced base, adds demand-matched crossing cover at ticks 2-9. When estimated probability is between 2c and 10c and YES"}, {"url": "https://api.imd.fun/artifacts/9acbf0cf247803e24c4e9e0ae987f830bc304be449b9981a837ed2d2ce7e62f2", "quote": "\"approach\": \"Spread 3 only. Replaced the base's clipped-fill flow estimate with a per-run Bayesian estimate of retail rate and mean order size, read from the base's own fills on both sides. Each side-step on which our main order showed at least $0.50 and sat clear of the estimated probability (no ri"}, {"url": "https://api.imd.fun/artifacts/adc67b24de94a37b17f0c930c42890ffd1286d8a83c1533e020a1eb7bd6aad43", "quote": "\"approach\":\"At spread 3 only, when the rival ask is at ticks 1 through 5, retain a same-price ask only if at least $20 of our identified FIFO-ahead quantity remains; otherwise quote one tick below the rival. The base retained priority with only two shares. This avoids spending a whole step with a ti"}, {"url": "https://api.imd.fun/artifacts/62e216da85968f7800ef3df52161ec0fcd747b7038aaa4d34dc4f463b5618198", "quote": "\"approach\": \"A single spread-3 clock gate suppresses ammunition bids at ticks >=2 above the estimated fair price while H>500 steps remain; H<=500 retains base behavior. The gate precedes the existing bridge logic, preserving cheaper bridge purchases and the tick-1 reserve. Early premium stock consum"}, {"url": "https://raw.githubusercontent.com/danrobinson/prediction-market-challenge/b244530ee2a6247b5f930830eeca9dd950da0e7e/orderbook_pm_challenge/runner.py", "quote": "    competitor = replace(\n        base_config.competitor,\n        quote_notional=rng.uniform("}]}