SAN FRANCISCO — Wall Road loves a pandemic winner.Shares of DoorDash soared of their first day of buying and selling on Wednesday, capping a yr of outsize progress for the nation’s largest meals supply firm. DoorDash inventory opened at $182, 78 p.c above its preliminary public providing worth of $102, and shortly traded greater. The corporate raised $3.four billion, making it the biggest preliminary public providing of the yr. Buyers piled into the inventory regardless of DoorDash’s deep losses and the intensely aggressive market wherein it operates. Within the week earlier than it went public, DoorDash raised its proposed worth vary 16 p.c to $92.5 per share on the midpoint, earlier than pricing even greater. The pandemic has been a boon to the corporate, as individuals turned to supply companies whereas caught of their houses.Tony Xu, the chief government of DoorDash, stated the corporate would strive to not “chase the scoreboard” and the inventory market hype. “I acknowledge the importance of the milestone and the second, however it’s in the future on this multidecade journey,” he stated.DoorDash’s itemizing heralds a banner week of public choices for know-how start-ups. Airbnb plans to cost its providing in a while Wednesday and start buying and selling on Thursday. The house rental firm has already raised its providing worth vary as soon as and could possibly be valued at as excessive as $42 billion, far above its $18 billion valuation within the non-public market this yr.The e-commerce start-up Want, the video gaming firm Roblox and the true property start-up OpenDoor additionally plan to listing their shares earlier than the top of the yr. The occasions are set to ship windfalls to the businesses’ founders, staff and buyers in what is predicted to be the busiest yr for I.P.O.s since 1999, with greater than 200 firms going public thus far.Many of those firms lose cash. Even so, buyers have largely given them heat welcomes as they go public. Non-public buyers valued Snowflake, a knowledge warehousing firm, at $12 billion earlier than it went public in September. Since then, its valuation has soared to $107 billion.DoorDash’s debut additionally exhibits the intense financial disparities created by the pandemic. Eating places, struggling to outlive government-mandated closures, have more and more relied on supply apps like DoorDash to remain in enterprise.The apps, which dispatch armies of gig employees to choose up and ship orders, cost charges that some restaurant homeowners have stated are onerous. In lots of instances, the takeout orders haven’t made up for the misplaced income of indoor eating. Chains together with Ruby Tuesday, California Pizza Kitchen and the father or mother firm of Chuck E. Cheese have gone bankrupt this yr.However DoorDash has thrived. Within the first 9 months of the yr, its income greater than tripled from the identical interval final yr, to $1.92 billion. Orders surged to 543 million by means of September, in contrast with 181 million a yr earlier.Forward of its I.P.O., DoorDash introduced a $200 million pledge to numerous applications to assist eating places and supply drivers. It invited a variety of restaurant homeowners and supply drivers to just about attend the inventory market opening bell ringing and featured them in outside advertising and marketing campaigns round New York and San Francisco.Regardless of its fast progress, DoorDash is burning money. It misplaced $149 million within the first 9 months of the yr and warned buyers that the pandemic-spurred progress was more likely to decelerate.Mr. Xu stated the corporate would proceed to spend cash to develop “commensurate with the chance.”DoorDash just lately received a long-fought battle over its use of contract employees. Final month, Californians handed Proposition 22, a poll measure that exempts DoorDash, Uber, Lyft and others from a state legislation that may have required them to deal with their drivers as staff. The businesses are anticipated to push for comparable guidelines in different states.DoorDash has grown, partially, by specializing in suburban markets and partnerships with massive chain eating places. Based in 2013 by Mr. Xu, Stanley Tang, Andy Fang and Evan Moore, it survived a ruthlessly aggressive marketplace for longer than lots of its rivals. This yr, two gamers, Grubhub and Postmates, have been acquired by bigger rivals.By way of the deal-making, DoorDash has remained impartial. It counts a million drivers and 18 million clients in the US, Canada and Australia.The corporate has experimented with completely different enterprise fashions, together with a subscription service, DashPass, which prices $9.99 a month for limitless deliveries. DashPass has 5 million subscribers.DoorDash additionally started working commissary buildings the place eating places can hire house and put together meals particularly for deliveries. It has additionally struck partnerships with grocers, pet meals firms and drugstores. The corporate even invested in Burma Bites, a neighborhood restaurateur.The succession of tech I.P.O.s supplies long-awaited returns to enterprise capital buyers. Most of the firms going public are a decade previous. Plentiful enterprise funding has allowed “unicorn” start-ups, price $1 billion or extra, to place off going public, and with it the strain to show a revenue, for so long as doable.Sequoia Capital, which has backed Airbnb, DoorDash, Snowflake and several other different sizable start-ups going public this yr, is predicted to reap a bonanza. So is Founders Fund, a enterprise agency that could be a massive shareholder in Airbnb and Want. And the Japanese conglomerate SoftBank, which was bruised by dangerous bets on the workplace rental firm WeWork and others, could possibly be redeemed by its investments in DoorDash and OpenDoor.