A long-short, multi-instrument LONG-HORIZON (macro) time-series momentum basket across ~10 established, confirmed-full-history Binance USD-M majors (BTC, ETH, SOL, BNB, XRP, DOGE, ADA, LTC, LINK, BCH). It holds each major LONG when its OWN long-horizon trend (≈6-month) is up and SHORT when it is down, rebalancing only MONTHLY. This is the deliberate response to the session's hardest-won lesson: the analyst conclusively established that SHORT-HORIZON single-bar signals on majors are noise+fee dominated (both the 15m breakout-continuation and the 4H volume-climax-fade lost ~98%), and that the ONLY validated form of this primitive is DAILY-or-slower TREND (the daily vol-targeted basket: +392%, Sharpe 2.59). This strategy pushes that validated edge to the horizon where trend persistence is STRONGEST and noise/fees are WEAKEST — the classic 6-12 month managed-futures momentum — capturing the slow secular crypto trends with near-zero turnover. It is distinct from the weekly-rebalance promoted basket by horizon (months vs weeks → slower, lower-turnover sleeve) and fills the single most under-represented horizon bucket (macro_1w_plus at 0.2%). It uses only established-majors daily OHLCV — data-safe (broad-alt baskets die on data_unavailable) — and avoids every refuted class (no intraday, no MR fade, no basis/funding/options/COIN-M/HL/liquidations). Long-short improves the 87%-long skew; monthly rebalance makes fees trivial; few parameters resist overfitting.