I think it depends heavily on what specifically was adjusted. If it's something that changes capital efficiency or liquidation risk, then yes, it can meaningfully shift preferences because it alters the risk-reward for active traders. If it's a minor administrative tweak, the market will forget about it within a day. The 51.8% active buying is basically a coin flip, so it doesn't tell us much about conviction. Personally I'd keep an eye on whether funding and open interest move together, that's usually a better tell than a single ratio.

Short answer: partly yes, but the amplification is usually short-lived unless it coincides with a broader macro or liquidity shift. Markets love a narrative, and 'large investor behavior' is an easy one to run with, so expect some noise. But parameters alone don't create sustained trends, they just tilt the odds. The position change you mentioned is worth watching, but I'd want to see it persist across multiple sessions before drawing conclusions. Always verify with official exchange data, and remember none of this is investment advice.

Contract parameter adjustments do affect market preferences, but usually indirectly. Things like funding rates, margin requirements, or position limits change the cost and leverage available to traders, which can shift short-term behavior. That said, a single adjustment rarely flips the broader trend on its own. The 51.8% active buying figure is close to neutral, so I wouldn't read too much into it alone. I'd treat it as one input among many, not a standalone signal. Not financial advice, just my two cents.

In my experience, the market tends to over-amplify news in the first few hours and then settle down once the actual mechanics are understood. If the parameter change mainly affects derivatives positioning rather than spot flows, the impact is often limited beyond the immediate reaction. The more interesting question is whether large holders are actually repositioning or just hedging. Position data can be misleading without context on whether it's opening or closing. I'd wait for confirmation rather than chase the narrative.