Morgan Stanley’s trading desks reported a noticeable lift in revenues after the White House rolled back a key capital rule last year. The change, part of Donald Trump’s broader deregulation agenda, lowered the amount of equity capital banks must hold against market‑making activities, freeing more capital for proprietary trades.

Industry analysts say the rule reversal directly benefits firms that run high‑frequency and arbitrage strategies, where capital efficiency translates into tighter spreads and higher volume. By reducing the capital charge, Morgan Stanley can allocate more balance‑sheet capacity to its execution platforms, potentially widening its profit margin relative to peers still constrained by legacy requirements.

The boost comes at a time when investment banks are scrambling to offset pressure on traditional underwriting fees. With trading contributing a larger slice of overall earnings, the capital rule rollback may reshape revenue composition across the sector, encouraging rivals to lobby for similar regulatory relief.

For shareholders, the immediate effect is a clearer path to higher quarterly payouts as trading profit margins improve. Management’s focus on extracting value from the deregulated framework signals that future earnings guidance will likely factor in this added headroom, making Morgan Stanley a more attractive dividend play in a low‑rate environment.