Solid State reports 38.6% revenue growth in first half 2025

Solid State plc reported H1 (six months to Sept. 30, 2025) revenue up 38.6% to £85.7m and adjusted profit before tax up 96% to £4.9m, with adjusted operating margin improving 140 basis points to 6.5%. Results were driven by £23.3m of communications revenue to NSPA and a stronger order book (£87.3m at Sept. 30, rising to £97m by Nov. 30); the interim dividend was increased 10.8% to 0.92p. Post-period the group secured an initial $10.8m Project CAIN order for the British Army and appointed John Macmichael as interim CEO following the death of long-serving CEO Gary Marsh, while reiterating it is on track for consensus FY25/26 revenue £145.2m and adjusted PBT £7.2m.

Analysis

Market structure: Solid State (AIM:SOLI) is a clear near-term winner — the £23.3m NSPA delivery and new $10.8m CAIN order push booked revenue visibility (open orders £97m vs FY revenue consensus £145m) and give SOLI incremental pricing power in defense comms where lead-times and certification create barriers. Losers are pure-play industrial OEMs exposed to weak capex where the article flags ongoing industrial softness; expect market share to shift toward specialized defense/secure-comm suppliers and away from commodity component vendors over 12–24 months. Cross-asset: modest positive for sterling and reduced credit spreads for defense-focused small-caps; longer-dated government bond yields may drift lower if flows rotate to perceived lower-risk defense revenue streams.

Risks: Key tail risks are contract cancellations, program delays (deliveries not expected until 2026), and CEO succession execution risk after the founder’s death — each could wipe out >30% of rerating in a downside scenario. Time horizons: immediate (days) — sentiment bounce on contract headlines; short-term (weeks–months) — volatility around FY guidance updates and orderbook upgrades; long-term (quarters) — realization of follow-on CAIN revenues and margin expansion to reach consensus +£7.2m adj PBT. Hidden dependencies include customer concentration (NSPA/UK MoD) and FX exposure on USD-priced military orders; catalysts: contract amendments, defense budget announcements, and November–Feb orderbook updates.

Trade implications: Direct play — establish a modest long in SOLI sized 2–3% of portfolio pre-earnings, target +15–25% in 6–12 months if orderbook grows >£105m, stop -12% to limit program-delay risk. Options — use a 6–9 month call spread (buy ~+15% strike, sell ~+35% strike) to cap premium while capturing re-rating; pair trade — long SOLI / short broad UK industrial small-cap ETF to isolate defense upside versus cyclical weakness. Sector rotation — increase weighting to defense/secure-comm (e.g., BAE Systems BA.L) and reduce cyclical industrial exposure by ~20% over next 3 months.

Contrarian angles: Consensus likely underestimates execution risk from management transition and single-customer concentration; if management converts multi-year CAIN into repeat commercial orders, upside could be material and currently underpriced by small-cap illiquidity. Reaction may be underdone — market hasn't fully priced the open-order-to-revenue conversion (£97m backlog ~67% of FY consensus revenue), so even conservative conversion assumptions (50% realized next 12–18 months) imply meaningful EPS upside. Conversely, an overreliance on a handful of defense programs creates cliff risk if budgets shift, so size positions accordingly and tie exits to concrete milestone delivery dates.

Key Decisions for Investors

• Establish a 2–3% long position in Solid State plc (AIM:SOLI) within 5 trading days; target +15–25% in 6–12 months if open order book rises above £105m, set a hard stop at -12% to control program/delivery risk.
• Execute a 6–9 month SOLI call spread to limit premium: buy calls ~+15% OTM and sell calls ~+35% OTM (size ~1% notional) to capture re-rating while capping downside cost; roll or close if CAIN initial deliveries are delayed past Q3 2026.
• Implement a relative-value pair: long SOLI (1.5%) and short a UK industrial small-cap ETF or an industrial cyclical stock with >50% industrial exposure (size 1.5%) to isolate defense comms upside vs cyclical weakness; rebalance after FY updates.
• Increase allocation to large-cap defense: add a 2% position in BAE Systems (BA.L) over the next 30 days to gain diversified defense exposure; simultaneously reduce cyclical industrial exposure by ~20% across holdings with >30% revenue from automotive/capex sectors.