Here’s a concise overview of notable investing/trading app outages affecting Indian users during late 2025 into 2026, especially around major brokers like Zerodha, Groww, Upstox, and Angel One. ## Major outage events ### December 5, 2025 — Cloudflare-linked multi-broker outage One of the biggest recent incidents hit multiple Indian trading apps simultaneously after a global Cloudflare outage. Affected platforms included: - Zerodha - Groww - Angel One - Upstox Users reported: - Login failures - Delayed or failed order execution - Missing market data - “500 Internal Server Error” messages Cloudflare later confirmed the outage was triggered by an internal Web Application Firewall configuration change. The disruption reportedly lasted around 25–30 minutes during trading hours. Several reports noted that Zerodha advised customers to temporarily use its WhatsApp backup trading system during the outage. ### September 3, 2025 — Zerodha Kite glitch Zerodha experienced a morning outage affecting its Kite app around market open. Reported issues: - Frozen price updates - Login instability - Delayed data refreshes Order placement reportedly remained functional for some users, but traders complained about unreliable real-time information during volatile trading periods. ### Ongoing intermittent broker glitches (2025–26) The shows officially reported member-side technical issues by brokers. For FY 2026–27, brokers including Groww and Upstox already appear in exchange-reported glitch counts. This does not necessarily mean full outages, but indicates: - API failures - OMS/RMS interruptions - Connectivity problems - User-impacting technical incidents reported to the exchange ## Common causes behind Indian investing app outages The incidents generally fall into a few categories: | Cause | Example | |---|---| | Third-party infrastructure failure | Cloudflare outage | | High volatility load spikes | Market open / election / budget days | | Broker-side OMS/RMS issues | Order routing failures | | Exchange connectivity problems | NSE/BSE disruptions | | Scheduled maintenance | Weekend downtime windows | ## Platforms most frequently discussed in outage reports The brokers most commonly appearing in user complaints and media reports are: - Zerodha - Groww - Upstox - Angel One This is partly because they have the largest retail trading user bases in India. ## Useful live outage trackers - - These are useful during market hours to distinguish: - broker-specific failures - ISP problems - exchange-wide outages - global infra failures ## Trend in 2025–26 A recurring theme in 2025–26 has been increasing systemic dependency on shared cloud/network infrastructure. The December 2025 Cloudflare event demonstrated that multiple competing brokerages can fail simultaneously because they rely on common backend providers.
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