(These are the market notes on today's action by Mike Santoli, CNBC's Senior Markets Commentator. See today's video update from Mike above.) A firm finish to the week for stocks keeps the S & P 500 's multi-day pullback to a minimum. With every excuse to retreat more notably — technical overbought conditions, unfriendly seasonal patterns, sell-the-news responses to flashy AI/chip news and a bump in Treasury yields — the index was only off 0.30% this week, less than a percent from the Sept. 22 record high, and hasn't had even a 3% dip since May. The self-supporting rotational action and hair-trigger dip-buying reflex is underpinning this resilience, with some mostly expected but reassuring data on personal income, spending and PCE inflation providing cover. The equal-weighted S & P too is d

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