(This version of the April 4 story corrects attribution to Garrett Hoffman, StockTwits senior data scientist, not Pierce Crosby, StockTwits director of business development in paragraphs 8 and 9.)

FILE PHOTO: The Spotify logo is displayed after the stock began selling as a direct listing on the floor of the New York Stock Exchange in New York, U.S., April 3, 2018. REUTERS/Lucas Jackson

NEW YORK (Reuters) - The buzzy debut of Spotify Technology SA SPOT.N on the New York Stock Exchange on Tuesday drew retail investors across generations, not just the Millennials who make up the largest proportion of the music streaming service's customer base, retail brokerages said on Wednesday.

Spotify’s listing was hotly followed, as it went public via the unusual method of a direct listing, without selling new shares. There was demand for the stock, and shares ended up 12.9 percent on their first day of trade on the New York Stock Exchange. On Wednesday, the shares ended the day’s session at $145.87, down 2.1 percent from Tuesday’s close.

Social media platform Snap Inc's SNAP.N high-profile IPO last year had been notable for being popular with Millennials, the primary user base for the company's mobile app Snapchat. But though Millennials are also a key demographic for Spotify, the Swedish company's listing did not draw disproportionate interest from that generation.

Demand was seen across age groups, according to brokerages Fidelity and TD Ameritrade.

“There’s good interest in it,” said J.J. Kinahan, TD Ameritrade’s chief market strategist, who is based in Chicago. “It’s pretty well split across age groups.”

Fidelity said among its customers, baby boomers were slightly more active in trading Spotify shares than Millennials or members of Generation X. Baby boomers made nearly one-third more trades than Millennials and 20 percent more trades than members of Generation X. A similar pattern holds for other tech IPOs, a Fidelity spokesman said.

Retail investor behavior indicated some caution about jumping in.

On StockTwits, a social media platform whose users are mostly retail investors, only 40 percent of members were bullish on Spotify ahead of the debut. Negative sentiment toward the IPO rose as the date approached and the expected trading price climbed, said Garrett Hoffman, StockTwits senior data scientist.

“Our community is as bearish as they’ve ever been (about Spotify),” Hoffman said.

On the site, users posted messages expressing concerns about Spotify's lack of profits and competition from companies such as Apple Inc AAPL.O.

High-profile IPOs of companies associated with the tech sector have had a mixed track record in the past year. Shares of MuleSoft Inc MULE.N and Roku Inc ROKU.O, which went public in March 2017 and September 2017, respectively, have climbed more than 100 percent since those companies' IPOs. On the other hand, shares of Snap and Blue Apron Holdings Inc APRN.N have fallen below their IPO prices.

Individual investors who spoke with Reuters similarly expressed reservations about buying Spotify shares.

“I think a lot of similarly situated retail investors still view many of the VC-backed, marketplace tech companies as destined IPO flops,” said Layla Tabatabaie, an entrepreneur and advisor to tech startups who lives in New York.

Others said they would only consider buying the stock at a lower price.

“It’s certainly a strong company in regards to the service it offers,” said Jonathan Johnson, a relationship banker in Portland, Oregon. “I’d consider buying it but not at these (price) levels.”