Affirm Shares Surge 2.52% on $810M Volume Spike, Climbing to 222nd in Market Activity

, . The fintech company’s shares reflected renewed investor confidence following strategic developments in its digital lending platform and partnerships.

Analysts noted that Affirm’s performance aligned with its recent focus on expanding merchant collaborations and optimizing . The stock’s momentum was further supported by macroeconomic conditions favoring consumer finance sectors, though earnings expectations remain cautious ahead of the Q3 reporting window.

To run this back-test robustly I need to clarify a couple of practical details: 1. Universe • Should we look at all U.S. common stocks (≈ 6 000 tickers) or a narrower universe such as the current S&P 500 constituents? • ADRs, ETFs and penny stocks – include or exclude? 2. Portfolio construction • Equal-weight allocation to the 500 selected names each day, or volume-weighted / market-cap-weighted? • Any transaction-cost assumption (e.g., 2 bp per trade)? 3. Benchmark / performance metrics • Do you want the strategy’s absolute return only, or statistics vs. a benchmark (e.g., SPY)? Confirming these points will let me choose the right data universe and generate the daily rebalance signals.