IBKR's broader securities-lending estimate rose 36% while its narrow interest-table line fell. A second reconciliation separates the $1.191bn operating interest analysis from $1.154bn of GAAP net interest income.
Four linked names did not use the full Interactive Brokers brand. The FCA warnings concern impersonators with no connection to the genuine firm; names, domains and contact details need separate checks.
A category-matched FCA comparison for January–June 2026 finds a 63.62-point rapid-closure gap. The data describe handling times, not a ranking of service quality.
Average customer margin loans rose 46.9% in the third quarter while the yield fell 35 basis points. The larger balance lifted margin-loan interest 35.7%, demonstrating how Interactive Brokers’ balance-sheet scale offset rate compression—and where the next sensitivity lies.
Trading 212, eToro, XTB and Interactive Brokers all require the fractional portion to be sold or closed before an account transfer. Economic rights also differ: voting exists in some programmes but not others.
Applying four brokers’ standard published automatic-conversion rates to two $10,000-equivalent exchanges produces a 25-fold range. The comparison is controlled and reproducible, but multicurrency balances and discounts can change the realised cost.
Trading 212, eToro and Interactive Brokers all use 50% in their lending economics, but one refers to received interest, another to revenue net of third-party costs and another to a market-based collateral rate. Robinhood uses up to 15% of gross revenue.
Public UK pages checked on 8 November displayed multiple rolling CFD-loss percentages within the same provider. The differences may reflect asynchronous updates, but they make one-page broker rankings unreliable before denominator and period differences are considered.
Interactive Brokers’ consolidated accounts include all of IBG LLC even though the listed company owned 26.6%. The noncontrolling-interest bridge, not the headline net-income figure alone, determines what belongs to public shareholders.
Interactive Brokers’ named securities-borrowed-and-loaned line fell to $142m, while its wider securities-lending net interest measure rose to $1.039bn. Cash-collateral interest moved the sign of the comparison.
The same Tiger platform serves consolidated and fully disclosed accounts, but the filings show materially different clearing, financing and revenue-recognition chains. Interest-related income supplied 45.5% of second-quarter gross revenue.
IBKR’s October accounts reached 5.678m, up 34% annually, while daily average revenue trades fell 4%; customer asset values and margin loans must not be equated with earnings.
The 28 October IBKR Connector update adds earnings previews and results research; the separate ability to build and revise AI stock screens had already been covered earlier in October.