Last week saw the largest increase in long equity positioning in history, according to Deutsche Bank. Market-on-Close (MOC) imbalances indicated substantial institutional buying activity, with notable figures including a $3.7 billion MOC on one day and daily imbalances of $5.0 billion and $5.7 billion earlier in the week. Over the last four sessions, total buying on the New York Stock Exchange reached $17.5 billion, accompanied by a $1.8 billion buy imbalance on the Nasdaq. Market-on-Open (MOO) imbalances showed negative values across major indices, including the S&P 500, Nasdaq 100, Dow 30, and the MAG 7 group, reflecting a contrasting trend at market open compared to the close.