Trade U.S. stock semiconductor grid arbitrage 2,742 times—why is the return still negative?

Using U-margined futures grid trading to run $TSM and $SAMSUNG ($MU ) on AI compute-power and storage-related targets, for nearly 60 days—here are the algorithms and hard real-trading logic I summarized.
1 High frequency doesn’t necessarily mean higher total returns

Looking at the data: $SAMSUNG did automatic high-sell/low-buy arbitrage 2,742 times. Realized paired profit was locked in at +133.31 USDT, with a 49.71% return rate. $DRAM also had 1,377 paired arbitrage trades, but recently the U.S. tech sector saw a deep pullback—unpaired floating losses turned the overall returns negative.

2 The core defense of futures grid trading is the liquidation price
Run the grid with 10x to 12x leverage. The liquidation price determines the lifeline: pull $SAMSUNG’s liquidation price up to $72.5, and set $SAMSUNG ($MU )’s liquidation price to $312. This keeps a low-risk rating. That way, even if the overall market sharply plunges, the robot won’t be forced out by liquidation.

3 Use arbitrage profits to “eat” funding fees
When running long-side grids, you’re charged funding fees every day. But as long as the grid arbitrage trade frequency is high enough, the realized paired profits can fully cover the funding fees. What’s left is just waiting for the sector to stop falling and rebound—turning floating losses into pure profit when it finally spikes up.
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