A paper estimates a ninefold median capacity increase from slower rebalancing among factors with positive initial capacity. The signals stay the same; the trading rule changes. These are historical model estimates.
We reproduced Bruce Knuteson's "Strikingly Suspicious Overnight and Intraday Returns" from the same public data, then split it by era. The overnight return is still there.
Study: Strikingly Suspicious Overnight and Intraday Returns
Brogaard, Han and Kim's reversal appears in our high-VIX, two-hour rebuild. Sampled entry quotes imply a spread hurdle more than three times the gross edge under full spread crossing.
Study: Intraday Residual Reversal in the U.S. Stock Market