Investors and executives with the Broadway musical “Spider-Man: Turn Off the Dark” said on Tuesday that the show will have historic losses of up to $60 million when it closes on Jan. 4. The closing follows a sharp decline in ticket sales because of competition from hotter musicals and a lack of star attractions in the cast.

Several investors said they were reeling from the closing announcement, made on Monday night. Three said they have not been paid back anything during the three-year run of “Spider-Man,” which cost twice as much as any other Broadway show, and said they planned to write off their investments. While Broadway flops usually lose $5 million to $15 million, “Spider-Man” will lose far more, given the show’s record-setting $75 million capitalization; the enormous weekly costs of running this special effects-laden production; and its operating losses of hundreds of thousands of dollars a week this fall, as the box office faltered.

The investors said they did not blame mismanagement by the lead producers for the show’s demise, but rather complained about its unsustainable budget and the shortcomings in the music, by Bono and the Edge of U2 — a score by famous artists that was supposed to be a selling point with audiences but ended up being dismissed by critics.

“We will see nothing back, not a cent,” said Terry Allen Kramer, a veteran Broadway producer who put about $1 million into “Spider-Man.” “A lot of us feel that it’s an extraordinary show with lousy music, but the main problem is that the budget numbers were a disaster — just a disaster.”