At major index highs, I think the biggest mistake is becoming emotional in either direction.
A rising market does not mean you must sell everything, but it also does not mean risk suddenly disappears.
For me, the better question is:
Have the reasons you own your positions actually changed, or are you just reacting to the level of the index?
If fundamentals still support the businesses and your time horizon is long, holding can still make sense.
If positions have become oversized, stretched, or purely momentum-driven, trimming into strength is not unreasonable either.
My view:
I would not treat 7100 as an automatic sell signal.
I would treat it as a reminder to review position sizing, risk, and whether expectations have started to outrun reality.
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