SWIB is exploring vertical integration on Dockside to give portfolio managers certainty over stock borrow

Derek Drummond is describing a form of structural integration that most asset owners have not seriously attempted: using the institution’s own long-only equity index holdings as a lending supply to underwrite the short-selling needs of portfolio managers operating on the same platform. The platform in question is Dockside, and the institution is the State of Wisconsin Investment Board, known as SWIB.

The logic Drummond puts forward is not complicated, but its implications for how large asset owners think about their role are worth examining. SWIB holds substantial long-only equity index positions. Those positions, sitting largely static in index allocations, are already lendable assets in the conventional securities-lending sense. What Drummond is proposing goes a step further: directing that lending activity specifically toward the portfolio managers on Dockside, so that those managers have, as he puts it, “certainty over their borrowers.”

Stock borrow uncertainty is a persistent operational problem for managers running long-short equity strategies. A manager can identify a trade, size a position, and then find that the borrow becomes unavailable or prohibitively expensive at the moment of execution. That uncertainty creates tracking error and forces managers to either pay elevated borrow costs, accept less-than-optimal sizing, or abandon trades entirely. An asset owner sitting on the other side of that equation, with a reliable and stable pool of lendable equity, can in principle remove that friction entirely for the managers it works with.

There are things that you can vertically integrate in that's beneficial to both sides. So maybe I'm lending out more stock at SWIB. My PMs get to have certainty over their borrowers. Derek Drummond

What Drummond is pointing toward is a tighter coupling between SWIB’s balance sheet and the operational needs of the managers it allocates to through Dockside. Rather than treating securities lending as a passive income activity conducted at arm’s length through intermediaries, SWIB would direct at least some portion of that activity toward solving a real problem for managers in its own ecosystem. The asset owner and the manager each get something concrete: SWIB lends out more stock and generates the associated income; the manager gets predictable, stable borrow at agreed terms.

The word Drummond uses is “vertically integrate,” and it is the right frame. Vertical integration, when it works, eliminates margin that intermediaries capture and replaces uncertainty with coordination. In the context of an alternatives platform run by a large sovereign-style allocator, it also raises the switching cost for managers and deepens the operating relationship between SWIB and the firms it backs. That is not a neutral feature. It changes the nature of the relationship from allocator-to-manager to something more like a platform with shared infrastructure.

Drummond frames the exploration in tentative terms. This is a direction being considered, not a program already operating at scale. But the direction is clear, and the asset to be deployed, a large pool of index equity held at SWIB itself, is not hypothetical. What remains to be worked out is the operational and legal architecture for routing that lending supply through Dockside in a way that serves both sides reliably.

The broader implication is that Dockside is being conceived as more than a fund structure or a fee arrangement. If SWIB lends stock into the platform’s managers, provides capital, and retains operational oversight, the line between allocator and operating partner becomes harder to draw. That is the direction Drummond appears to be pointing, and it represents a meaningful departure from how most institutional allocators have defined their role in relation to the managers they back.