Here’s what investors need to know.

AT&T stock is under selling pressure. Why is T stock retreating?

What California Regulators Mean for AT&T’s FutureCalifornia regulators recently asked a court and the FCC to reject the company’s request to stop offering traditional copper-wire phone service to new customers in parts of the state, arguing the carrier-of-last-resort obligation is technology-neutral. The California Public Utilities Commission also says the company hasn’t shown that replacement options would meet state standards for all impacted users.For investors, this regulatory friction matters because it directly impacts AT&T’s operational efficiency and cost-cutting timeline. Maintaining an aging, dual-infrastructure network of legacy copper alongside next-generation fiber is an expensive capital drain. By forcing the telecom giant to maintain these obsolete lines, regulators are effectively slowing down AT&T’s margin-expansion goals and diverting capital away from higher-growth fiber and 5G buildouts. For a defensive stock prized for its predictable cash flows and steady dividend, any unexpected regulatory drag that threatens near-term profitability is bound to make shareholders nervous.AT&T Stock: Critical Levels To WatchThe longer-term chart is still pressured: the stock is down 20.85% over the past 12 months and is trading below every major moving average, including about 3.9% below the 20-day SMA ($23.30) and 13.8% below the 200-day SMA ($25.97). That keeps rallies looking like counter-trend bounces unless price can start reclaiming the low-to-mid $20s and then the heavier trend band near the mid-$20s.Trend structure also remains bearish, with the 20-day SMA below the 50-day SMA and the death cross from May (50-day SMA below the 200-day SMA) still in effect. On momentum, MACD is below its signal line and the histogram is negative — plain English: upside pressure is cooling versus the prior upswing unless buyers can push the trend back above that baseline.