B

Auto Stock Rebalancing Alert

3.15

Derivation Chain

Step 1 Hyundai Motor/Kia stock surge hitting 52-week highs
→
Step 2 Individual investor automotive sector portfolio management
→
Step 3 Automated sector concentration detection and rebalancing alert service

Problem

As Hyundai Motor and Kia hit 52-week highs, many individual investors find their automotive sector allocation surging past 30% of their portfolio. However, brokerage mobile trading apps lack sector-weight warning features, so investors unknowingly keep buying into a concentrated position and suffer significant losses during corrections. Manually calculating allocations takes over 30 minutes when holding 10+ stocks.

Solution

Link portfolios via brokerage API or manual entry to visualize GICS sector and theme allocations in real time. Sends rebalancing alerts via KakaoTalk/Telegram when preset thresholds are reached (e.g., single sector exceeding 25%). Automatically calculates and presents buy/sell quantities relative to target allocations.

Target: Individual investors aged 30-50 holding 5-30 stocks, investment club and study group organizers
Revenue Model: Premium Monthly Subscription 4,900 KRW (~$3.70/month) (1 portfolio, 3 alerts), Pro 9,900 KRW (~$7.40/month) (5 portfolios, unlimited alerts, rebalancing simulation)
Ecosystem Role: Consumer
MVP Estimate: 2_weeks

NUMR-V Scores

N Novelty
2.0/5
U Urgency
3.0/5
M Market
3.0/5
R Realizability
4.0/5
V Validation
3.0/5
NUMR-V Scoring System
N Novelty1-5How uncommon the service is in market context.
U Urgency1-5How urgently users need this problem solved now.
M Market1-5Market size and growth potential from proxy indicators.
R Realizability1-5Buildability for a small team with realistic constraints.
V Validation1-5Validation signal quality from competition and demand data.
Each dimension is scored 1-5 and weighted into grade S/A/B/C/D.
SaaS N=.15 U=.20 M=.15 R=.30 V=.20 Senior N=.25 U=.25 M=.05 R=.30 V=.15

Feasibility (69%)

Tech Complexity
29.3/40
Data Availability
20.0/25
MVP Timeline
20.0/20
API Bonus
0.0/15
Feasibility Breakdown
Tech Complexity/ 40Difficulty of core implementation stack.
Data Availability/ 25Practical availability and cost of required data.
MVP Timeline/ 20Expected time to ship a usable MVP.
API Bonus/ 15Bonus for viable public API leverage.
Total 100 points; below 50% is filtered out.

Market Validation (55/100)

Competition
8.0/20
Market Demand
6.2/20
Timing
14.0/20
Revenue Signals
10.5/15
Pick-Axe Fit
7.5/15
Solo Buildability
9.0/10
Validation Breakdown
Competition/ 20Signal quality from competitor landscape.
Market Demand/ 20Demand proxies from search and mention patterns.
Timing/ 20Fit with current shifts in tech, behavior, and regulation.
Revenue Signals/ 15Reference evidence for monetization viability.
Pick-Axe Fit/ 15How well the concept serves participants in a trend.
Solo Buildability/ 10Practicality for lean-team implementation.
Total 100 points; below 50 is filtered out.

Technical Requirements

Backend [medium] Frontend [medium] Infrastructure [low]
Dashboard