Rakuten Group (4755.T) — Sum-of-Parts Valuation: Mobile Turnaround Trade at ¥760

by psind707

Published: May 5, 2026 | Price: ¥760 (May 4, 2026) | Rating: LONG (moderate conviction) | PWFV: ¥908 | Time horizon: 12-24 months

TL;DR

Rakuten Group trades at ¥760, down ~29% from 52-week high of ¥1,068 despite achieving its multi-year thesis milestone: Rakuten Mobile reached first-ever full-year EBITDA profitability of ¥28.8B in FY2025 (a ¥65B YoY swing). The market is pricing the Mobile segment as a melting ice cube, giving essentially zero credit for the turnaround beyond bare EBITDA breakeven.

Sum-of-parts analysis suggests probability-weighted fair value of ~¥908 per share, implying ~20% upside. The trade requires patience through Q1 FY2026 print (May 14, 2026) and 2-3 quarters of continued Mobile execution. Refinancing risk in a rising JGB yield environment (10Y at 2.51%, 17-year high) is the primary bear case.

This is a patience trade, not a catalyst trade.

FY2025 Results — The Headline Story is Real

Reported February 12, 2026:

The Crown Jewel Achievement

Rakuten Mobile achieved first-ever full-year EBITDA profitability of ¥28.8B vs -¥36.3B prior year — a ¥65B YoY swing. This was the central thesis for the long after a six-year capex/loss cycle.

Subscriber milestone: crossed 10M subs in December 2025 (1.71M YoY net adds, +143.8% in MNO net additions).

Important caveat: Mobile is still loss-making on a Non-GAAP operating income basis (-¥161.8B). EBITDA-positive ≠ operating profitable. The path from EBITDA breakeven to operating breakeven is another 2-3 years.

Other FY2025 Highlights

• 29th consecutive year of revenue growth
• Second consecutive year of IFRS operating income
• Rakuten Symphony reached Non-GAAP operating profit for first time ever
• AI contribution to profit reached ¥25.5B (target: triple to ¥75B in 2026)
• Rakuten Securities surpassed 7M NISA accounts (top market share)
• Rakuten Bank: 17.63M accounts (+7.0%), ¥13.2T deposits (+10.0%)
• Rakuten Card: ¥26.5T GTV (+10.3% YoY)

Why the Stock Fell on a Great Print

Stock dropped -11% post-earnings despite record revenue and Mobile breakeven. Five reasons:

1. Stock had run +30% into the print — buy the rumor, sell the news dynamic
2. Q4 FinTech valuation losses raised quality-of-earnings questions
3. FY2026 guidance seen as cautious (Mobile self-funding policy implies tighter capex discipline)
4. Refinancing pressure — Japan 10Y yield at 2.51% (17-year high) vs 0.5% when Rakuten took on much of its debt
5. Yen weakness + Iran conflict weighing on Japanese consumer discretionary stocks broadly

WACC Derivation

Low WACC structurally favorable to Japanese names but the rising rate environment is the real headwind — Rakuten's blended debt cost will rise as bonds get refinanced at +200bps higher rates.

Sum-of-Parts Valuation

This is the only honest way to value Rakuten given three distinct businesses with vastly different multiples.

Segment 1: Internet Services (E-Commerce + Travel + Symphony + Viki + Kobo)

• Revenue ¥1.37T, Non-GAAP OI ¥88.9B, EBITDA ~¥135B
• GMS of ¥6.35T in domestic e-commerce (+3.9% YoY) — dominant Japan position
• Rakuten Symphony reached Non-GAAP operating profit for first time

Apply 6-8x EBITDA = ¥810B-1,080B

Segment 2: FinTech (Card + Bank + Securities + Insurance + Pay)

This is the gem. ¥975.9B revenue, ¥199.9B operating income.

• Rakuten Bank (publicly listed, 4755 owns major stake): 17.63M accounts, ¥13.2T deposits
• Rakuten Securities: 7M+ NISA accounts (top market share), record revenue
• Rakuten Card: ¥26.5T GTV (+10.3% YoY), Mizuho Financial alliance announced
• Rakuten Pay: 111% YoY operating profit growth

Take ¥1.4-1.6T midpoint — most analysts use this approach.

Segment 3: Mobile (Rakuten Mobile + Symphony)

The swing factor. Just hit EBITDA breakeven.

• Mobile revenue ¥482.8B, EBITDA ¥28.8B in 2025
• Path to EBITDA: management targets long-term sub vision; realistic 12-15M by 2027
• Comp: KDDI EV/EBITDA ~6.5x, SoftBank Corp ~7x

Two valuation approaches:

A. Forward-looking (bull): If Mobile reaches ¥150-200B EBITDA by 2028 × 6x = ¥900B-1.2T, discount back at 10% over 3 years = ¥680-900B today.

B. Current (bear): ¥28.8B × 8x (premium for growth) = ¥230B, plus Symphony optionality ¥100B = ¥330B today.

Midpoint: ¥500-700B for Mobile + Symphony.

Non-Operating: AST SpaceMobile + Other Minorities

• Rakuten owns ~3% of AST SpaceMobile (ASTS) — current AST market cap ~$13B → Rakuten stake ~¥60B
• Plus Rakuten Medical, minority investments, Viki/Viber/Kobo

Add ¥150-250B for these.

Less: Net Debt + Holding Company Discount

• Net interest-bearing debt (non-FinTech): est. ¥800B-1.0T
• Substantial USD perpetual subordinated bonds with April 2026 first call (refinanced via domestic perpetuals)
• Holding company discount: 15-20% (typical for Japanese conglomerates with heavy minority structures)

SOTP Summary

Probability weighting (25/50/25):

• PWFV: ~¥933 per share vs ¥760 spot = ~23% upside

Reverse SOTP — What's the Market Pricing?

At ¥760 × 2.17B = ¥1,650B equity value Plus ~¥850B net non-FinTech debt = ¥2,500B EV Plus 17.5% HoldCo discount add-back = ¥3,030B implied gross asset value

If FinTech is worth ¥1,500B and Internet ¥900B, the market is implying only ¥630B for Mobile + Symphony + everything else — essentially zero credit for the Mobile turnaround beyond bare EBITDA.

This is the bull's argument: Mobile is being valued as a melting ice cube despite hitting breakeven.

Three-Scenario Per Share Valuation

PWFV ≈ ¥908 → ~20% upside from ¥760

Peer Valuation Comparison

Rakuten trades at the lowest revenue multiple in this group — the conglomerate discount is severe. A clean SOTP would suggest the parts are worth meaningfully more than the whole, but capital structure complexity (perpetual bonds, minority stakes, FinTech regulatory capital) makes the discount semi-permanent.

Risk/Catalyst Map

Bull Catalysts

• May 14, 2026 Q1 print — first quarter showing Mobile sustained profitability
• AST SpaceMobile commercial launch in Q4 2026 (100% geographic Japan coverage)
• AI contribution to profit targeted to triple to ¥75B in 2026 (from ¥25.5B in 2025)
• Mizuho/Rakuten Card alliance details — could unlock value
• FinTech IPO/spin potential for Securities or Card
• Rakuten Symphony continued customer wins

Bear Catalysts

• Refinancing risk: Japan 10Y at 2.51% (17-year high) — Rakuten debt repricing materially higher
• USD perpetual subordinated bonds called April 2026 — replaced via domestic perp subs but at higher cost
• Mobile capex still elevated for network buildout (¥200B+ in 2026)
• Yen weakness raising USD-denominated cost burden
• BOJ tightening cycle could continue (3 of 9 board members backed rate hike)
• Iran/oil shock weighing on Japanese consumer discretionary

Specific to Watch in Q1 Print (May 14)

• Mobile EBITDA quarterly run-rate (need to see ¥10B+ to validate trajectory)
• ARPU per Mobile sub trajectory (was ¥2,873 Q3 2025)
• Net interest-bearing debt change vs Dec 2025
• Any changes to FY2026 guidance
• Rakuten Symphony customer wins update

Investment Conclusion

Rating: LONG with moderate conviction — ~20% upside to PWFV ¥908.

Sizing

• 1-1.5% of book at ¥760
• Add to 2% if dips below ¥700
• Trim at ¥1,000+
• Stop: ¥620 (below bear PT and key technical level)

Path

This is a patience trade, not a catalyst trade. The Mobile turnaround is multi-year, FinTech compounding is slow, and the conglomerate discount is structural. The risk-reward at ¥760 is genuinely asymmetric (¥608 bear vs ¥1,235 bull), but the path to PWFV requires execution across multiple businesses simultaneously.

Single-Leg Options Note

ADR (RKUNY) options are extremely thin in the US. JPN options on 4755 are available via Japanese brokers but have low liquidity. Stock-only is the practical expression unless you have direct TSE options access.

Honest Caveats

1. Refinancing math is the swing factor. I built this assuming Rakuten can roll debt at 4-5% rather than 6-7%. If JGB yields keep rising and credit spreads widen, the bear case dominates and PWFV could compress to ¥700.

2. Q1 print timing is awkward. Buying ahead of May 14 print = catalyst risk. The Q4 print fell -11% on a "good" report. Better to size in stages: 0.5% now, 0.5% post-print if guidance reaffirmed.

3. Conglomerate discount is real and persistent. Mikitani has resisted breaking up the company despite repeated calls. Don't model your way out of structural ownership friction.

4. Bookings deceleration mentioned in DUOL/RBLX analysis isn't really applicable here. Rakuten's revenue is largely transactional GMS (e-commerce, payments, mobile usage) rather than subscription bookings. The "rate of change" question is whether Mobile sub adds and FinTech account growth continue, not deferred revenue dynamics.

The setup is interesting at ¥760 but the true asymmetry shows up only if you can hold through the May 14 print and the next 2-3 quarters of Mobile execution.

Research notes for personal use, not investment advice. Verify all figures independently before acting. Sources: Rakuten IR materials (FY2025 results press release Feb 12, 2026), TradingView, Investing.com, Morningstar, MarketScreener, Tradingeconomics — all English-language sources only.