A momentum indicator recently flipped bullish for XRP, Solana (SOL) and two other altcoins, according to a popular crypto analyst.

Ali Martinez tells his 101,300 followers on the social media platform X that the Tom DeMark (TD) Sequential Indicator presented buy signals on the four-hour charts for XRP, SOL, Maker (MKR) and World Network (WLD).

Traders use the TD Sequential Indicator to predict potential trend reversals for tokens based on the closing prices of their 13 previous bars or candles.

XRP is trading at $2.28 at time of writing. The 4th-ranked crypto asset by market cap is down nearly 4% in the past 24 hours.

Source: Ali Martinez/X

SOL is trading at $195.59 at time of writing. The Ethereum (ETH) competitor and 6th-ranked crypto asset by market cap is down more than 5% in the past day.

Maker is a decentralized finance (DeFi) protocol and stablecoin issuer. The project’s native token, MKR, is trading at $1,656 at time of writing. The 87th-ranked crypto asset by market cap is down more than 1.5% in the past 24 hours.

Worldcoin, OpenAI CEO Sam Altman’s controversial cryptocurrency project that uses eye-scanning technology to create an identity network, rebranded to World Network in October. The project’s native token, WLD, is trading at $2.23 at time of writing. The 73rd-ranked crypto asset by market cap is down almost 10% in the past day.