According to @santimentfeed, weekly net changes in notable development activity events over the past week show leaders Optimism +90.5%, Solana +73.5%, and Arbitrum +72.9%, with additional increases in Cosmos +71.5%, Polygon +56.8%, Gnosis +59.3%, Harmony +61.4%, BNB Chain +51.8%, Avalanche +51.0%, and Ethereum +40.2%, based on Santiment’s Jan 13, 2026 X post and its Dev Activity dashboard. According to @santimentfeed, the dashboard is highlighted for keeping tabs on which ecosystems are working hardest on innovating and improving over time, per the same Santiment sources.

According to @CryptoMichNL, Arbitrum’s TVL surged roughly 70% year over year to a $3.8 billion peak before the Oct 10 drawdown, while transaction counts continued to rise, indicating strengthening on-chain activity; source: @CryptoMichNL, Dec 7, 2025. He adds that ARB is printing new lows even as Arbitrum remains the most dominant ETH Layer 2 by TVL, suggesting broad altcoin mispricing that could present a trading opportunity; source: @CryptoMichNL, Dec 7, 2025. From a technical perspective, he highlights a strong bullish divergence and projects a potential 300–400% upside move for ARB toward a fairer valuation, which traders may watch for reversal confirmation; source: @CryptoMichNL, Dec 7, 2025.

According to @CryptoMichNL, ARB is printing a massive bullish divergence that has developed since the start of 2025, which he interprets as market accumulation and a constructive setup for altcoins. source: @CryptoMichNL on X, Nov 30, 2025. He adds that once this divergence turns in favor of buyers, it could drive a strong upside move across the broader crypto market, with ARB as a leading example to watch. source: @CryptoMichNL on X, Nov 30, 2025.

According to @Gajpower, non-native rollups should not be considered rollups on Ethereum and L2Beat should add a new post-Stage-2 "native" category where only that stage is fully green and all other stages, including Stage 2, are shifted toward red for stricter signaling, source: https://twitter.com/Gajpower/status/1993296638358831225 source: https://x.com/zeamETH/status/1993295591255032133. The comment targets L2Beat’s existing Stages framework for evaluating rollup maturity and security while L2Beat also tracks major ETH Layer-2s such as Optimism (OP) and Arbitrum (ARB), providing context for how any stricter “native” emphasis would relate to dashboard labeling, source: https://l2beat.com/scaling/transparency source: https://l2beat.com/scaling/projects/optimism source: https://l2beat.com/scaling/projects/arbitrum.

According to @cas_abbe, idOS is a decentralized storage protocol that delivers portable identity for the stablecoin economy and is backed by RippleX, Circle, Arbitrum and Starknet. According to @cas_abbe, the protocol enables self-custody of user data, is chain-agnostic to support users and applications across different chains, and emphasizes self-sovereign control. According to @cas_abbe, with the on-chain economy taking off, idOS is an interesting play for traders focused on identity infrastructure linked to stablecoin usage.

According to @CryptoMichNL, many altcoins are setting up for new lows as market confidence drops, a backdrop he views as a favorable accumulation period, source: @CryptoMichNL. He highlights Arbitrum (ARB) showing a higher-timeframe bullish divergence that could take time to play out, emphasizing patience for traders, source: @CryptoMichNL. He adds that ARB is no longer extending its downside while altcoins are displaying relative strength versus Bitcoin during the recent correction, which he interprets as early resilience in the sector, source: @CryptoMichNL.

According to Michaël van de Poppe (@CryptoMichNL), ARB is showing a massive bullish divergence at higher timeframe support on the ARB BTC pair, suggesting a bottoming setup that traders may view as an accumulation opportunity, source: X post by Michaël van de Poppe on Nov 9, 2025. He projects up to a 200 percent outperformance by ARB against BTC, emphasizing a likely strong move if momentum follows through, source: X post by Michaël van de Poppe on Nov 9, 2025. He adds that Arbitrum is among the strongest and most active Ethereum Layer 2 networks, which could catalyze a surge as awareness increases, source: X post by Michaël van de Poppe on Nov 9, 2025.