According to @StockMKTNewz, Apple AAPL had 7 up years and 6 down years from 1981 through 1993, with an arithmetic average yearly return of about +12.8% and a median of +6.9% based on the figures shared, source: @StockMKTNewz on X, Aug 9, 2025. The best year in that span was 1987 at +108% and the worst was 1993 at -50.5%, a 158.5 percentage point spread that underscores high volatility and the need for disciplined position sizing, source: @StockMKTNewz on X, Aug 9, 2025. Back-to-back gains occurred in 1986–1987 and 1990–1992, while consecutive declines hit 1988–1989, offering simple momentum and mean-reversion regimes to test on AAPL, source: @StockMKTNewz on X, Aug 9, 2025. The shared list appears truncated after 1993 with 1994 incomplete, so traders should either constrain any backtest to 1981–1993 from the post or obtain the full series before drawing conclusions, source: @StockMKTNewz on X, Aug 9, 2025.