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Disclaimer: This website is for informational and research purposes only and does not constitute financial, investment, or professional advice. We are not a licensed financial adviser under the Financial Markets Conduct Act 2013 (New Zealand). Always consult with a registered financial adviser before making investment decisions. While we strive for accuracy, data may contain errors or omissions. See our Disclaimer for full details.

Not affiliated with NZX Limited: NZXplorer is an independent research platform and is not associated with, endorsed by, or affiliated with NZX Limited or any of its subsidiaries. All data is sourced from publicly available NZX announcements, company disclosures, and other public sources. NZX® is a registered trademark of NZX Limited.

Information on this site is drawn from publicly available disclosures and is presented for transparency of governance and institutional accountability. Figures relate to roles held within organisations and do not represent personal financial profiling.

Data sourced from NZX announcements, company disclosures, FMA Disclose Register, dividends.co.nz and other public sources • © 2026 NZXplorer
nzxplorer.co.nzhello@nzxplorer.co.nz
Insights/Earnings Surprise Backtest

Earnings Surprise Backtest

Historical validation of the NZXplorer 9-factor earnings surprise prediction model (v2, calibrated from this backtest). Each prediction uses only data available before the earnings announcement.

Overall Accuracy

25%

182/716 correct

High Confidence

13%

1/8 (prob ≥70% or ≤30%)

Beats

354

49% of events

Misses

309

53 inline

Key Findings from Backtest

Serial Beaters (Sandbagging Guidance)

Companies that beat expectations 70%+ of the time — likely setting conservative guidance.

PYS7/7 beats (100%)TWL4/4 beats (100%)BLT5/5 beats (100%)SEK4/4 beats (100%)GEN6/7 beats (86%)RTO6/7 beats (86%)RAD5/6 beats (83%)DOW4/5 beats (80%)

Serial Missers (Over-Promising)

Companies that miss expectations 70%+ of the time — management credibility concern.

Signal Effectiveness

Accuracy of individual signals when they deviate from neutral (50). Higher = more predictive.

Insider Alignment

31%

393 events with signal • Insider buy/sell direction vs management tone

Tone Consistency

26%

554 events with signal • Management tone stability across periods

Guidance Track Record

34%

132 events with signal • Historical guidance accuracy

Accuracy by Year

YearEventsCorrectAccuracy
2026431126%
20251623723%
20241605132%
20231193126%

Most Predictable Companies

1
TEM
TEMTempleton Emerging Markets Investment Trust PLC75%(6/8)
2
FCT
FCTF&C INVESTMENT TRUST PLC73%(8/11)
3
2CC
2CC2 Cheap Cars Group Limited71%(5/7)
4
AIR
AIRAir New Zealand71%(5/7)
5
IPL
IPLInvestore Property Limited67%(2/3)

Methodology

9-Factor Model (v2 — calibrated from this backtest)

  1. Guidance Track Record (25%) — historical accuracy of management guidance
  2. Tone Consistency (20%) — management tone stability across periods
  3. Analyst Consensus (15%) — dispersion of analyst estimates
  4. Historical Pattern (15%) — serial beater/misser detection (strongest signal found)
  5. Insider Alignment (5%) — reduced from 15% (only 41% predictive in NZ)
  6. Guidance Transparency (10%) — frequency of guidance provision
  7. Earnings Volatility (8%) — NPAT change standard deviation
  8. Capital Raise Recency (4%) — dilutive raises as distress signal
  9. Forward-Looking Density (3%) — forward-looking statement count

Backtest Rules

  • Each prediction uses only data available before the announcement
  • Beat: NPAT improved >5% YoY. Miss: NPAT declined >5%. Inline: ±5%
  • Model predicts direction (beat/miss) and probability (0-100%)
  • High confidence: probability ≥70% or ≤30%
  • Minimum 3 events per ticker for per-company statistics
  • >55% = better than random. >65% = commercially useful

Related Insights

Consensus Estimates

Unified analyst consensus — target prices, guidance accuracy, earnings expectations across the NZX.

Earnings Surprise Predictor

9-factor beat/miss probability model — guidance, tone, historical patterns, analyst consensus.

Earnings Calendar

Predicted HY/FY reporting dates for all NZX companies based on historical patterns.

Data sourced from NZX earnings results, insider trades, management tone, analyst consensus. Our datasets may not be complete. Automated analysis can produce errors. Scores are calculated using disclosed methodology and are analytical tools, not investment ratings or recommendations. If you believe any data on this page is incorrect, please contact us at hello@nzxplorer.co.nz.

For informational purposes only. Not investment advice.

WCO4/4 misses (100%)TRU4/5 misses (80%)RYM6/8 misses (75%)AFC6/8 misses (75%)2CC5/7 misses (71%)AGL5/7 misses (71%)MLN5/7 misses (71%)NTL5/7 misses (71%)

Insider Trading is NOT Predictive in NZ

When insider trades contradict management tone, insiders were right only 41% of the time (90/220 events). NZ insiders appear to trade for liquidity and tax reasons, not information advantage. The model should reduce insider signal weight from 15% to 5-10%.

20221152219%
2021992828%
202018211%
6
KPG
KPG
Kiwi Property
67%
(2/3)
7
AFC
AFCAFC Group Holdings Limited63%(5/8)
8
VCT
VCTVector Limited60%(3/5)
9
IPR
IPRIperion Limited60%(3/5)
10
SDL
SDLSolution Dynamics Limited57%(4/7)

Least Predictable Companies

1
FBU
FBUFletcher Building0%(0/9)
2
SCL
SCLScales Corporation Limited0%(0/9)
3
BGP
BGPBriscoe Group Limited0%(0/5)
4
VGL
VGLVista Group International Limited0%(0/3)
5
SUM
SUMSummerset Group Holdings Limited0%(0/9)
6
SML
SMLSynlait Milk Limited0%(0/3)
7
FRW
FRWFreightways Group Limited0%(0/6)
8
FCG
FCGFonterra Co-operative Group Limited0%(0/5)
9
BRM
BRMBarramundi Limited0%(0/10)
10
BIT
BITThe Bankers Investment Trust PLC0%(0/5)