Groww opens the Investing Apps index at 89.3%, edging Zerodha by 2.6 points across all three engines.

Day one of the Investing Apps arc establishes a tight two-horse race at the top: Groww at 89.3% SoV (134 mentions) leads Zerodha at 86.7% (130 mentions), with both brands ranked first or second on every engine.

The drop to the chase pack is steep — Upstox sits at 56.7% and Angel One at 54.0%, a roughly 30-point gap from the leaders.

Engine asymmetry is already visible: ChatGPT and AI Mode put Upstox third, but Gemini elevates Angel One to third on the back of a 62% Gemini SoV.

INDmoney is the inverse case — fourth on ChatGPT (48%) but only sixth on Gemini and AI Mode.

The opening reading suggests Investing Apps is a category where the top of the citation pool is owned, not earned: groww.in (61 citations) and zerodha.com (47) together account for more cites than the next eight domains combined, and both leaders convert that owned-domain weight into >86% SoV.

The structural read for AEO specialists working a challenger brand here is that fighting for the top two slots is a citation-pool problem before it is a brand problem — Upstox and Angel One are visible but capped, and INDmoney's ChatGPT-vs-Gemini split shows how thin third-party coverage exposes a brand to engine drift.

Sentiment is unusually clean across the board (negative share in single digits for every tracked brand), which means the next chapters of this arc will be decided by source volume and source diversity, not by reputational repair.

One line to remember from day one: in Investing Apps, the leaders are leading on their own domains, and the challengers are renting visibility from review aggregators.