Digital Realty's Q3 Backlog and Renewals Underscore Durable AI Demand; WAIT Rating Maintained

What happened

Digital Realty reported FQ3'26 results that showed triple-digit booking and backlog growth with higher renewal rates, supporting its AI monetization narrative. The Seeking Alpha article highlights management's guidance for double-digit FFO growth beyond 2027, backed by raising ~$3.5B of capital across channels. Balance sheet metrics appear healthy with $20B in available capital, 4.9x net debt/EBITDA, and 63% of its $22B pipeline pre-leased at 11.6% yields. While these data points reduce near-term execution risk, the stock already trades at a premium valuation that embeds flawless execution. The prior concerns of backlog conversion and funding dilution have not fully dissipated; they remain key monitoring points.

Implication

The strong backlog and pre-leasing support the bull case, but the stock at current levels leaves little margin for error given a P/E around 53 and EV/EBITDA over 25. The 4.9x net debt/EBITDA is manageable, yet still above many REIT peers and dependent on continuous capital access. The double-digit FFO growth guidance is achievable if renewal spreads hold and commencements stay on schedule, but power delays or customer deferrals could quickly derail per-share growth. Investors should monitor cash renewal spreads (guide 6-8%) and the conversion of the $817M signed-not-commenced backlog over the next two quarters. Until those confirmations materialize or the stock pulls back to a more attractive entry, the risk/reward does not favor new longs.

Thesis delta

The prior WAIT thesis centered on execution risk and valuation. Q3'26 results suggest execution is on track with strong bookings and renewals, reducing the probability of a near-term disappointment. However, valuation remains stretched and the stock likely prices in durable double-digit growth, so the overall WAIT stance is unchanged. The key question shifts from 'can they execute?' to 'can they sustain this growth without dilutive funding?'