Sashank1006/finance-sentiment-mistral-lora

💹 Finance Sentiment Classifier — Indian Market Focus

Fine-tuned on Mistral-7B-Instruct using LoRA via Adaption AutoScientist.
Classifies financial news, headlines, and social media text into positive, negative, or neutral sentiment.
Built for the HackIndia Adaption AutoScientist Challenge — Finance track.

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📊 Performance

Metric	Base Model	Our Model	Improvement
Win Rate (our dataset)	44	56	+27% relative
Win Rate (market analysis category)	40	60	+50% relative
Dataset quality grade	E (2.0)	B (8.1)	+305% relative

Training curves showed clean, consistent loss reduction with no overfitting across 4 epochs.

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🧠 Model Details

Property	Value
Base model	mistralai/Mistral-7B-Instruct-v0.3
Training method	Supervised Fine-Tuning (SFT) + LoRA
LoRA rank	64
LoRA alpha	128
Target layers	q_proj, k_proj, v_proj, o_proj
Epochs	4
Optimizer	Cosine LR scheduler
Warmup ratio	0.05
Gradient clipping	1.0
Weight decay	0.01
Training platform	Adaption AutoScientist
Dataset size	20,000 rows (adapted)

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📁 Dataset

The training dataset is a curated merge of 6 sources totalling ~120,000 raw rows, cleaned and deduplicated down to 20,000 high-quality rows via Adaption's Adaptive Data pipeline.

Sources

Source	Type	Rows (approx)
financial_phrasebank (sentences_allagree)	Human-labeled news sentences	~2,200
zeroshot/twitter-financial-news-sentiment	Human-labeled financial tweets	~9,900
flwrlabs/fingpt-sentiment-train	Financial NLP training data	~76,800
TimKoornstra/financial-tweets-sentiment	Human-labeled financial tweets	~38,000
nickmuchi/financial-classification	Financial text classification	~2,000
Hand-labeled originals (Indian market)	Original, manually written examples	~60+
NewsAPI live headlines	Rule-labelled recent business news	~500

What makes this dataset original

• Indian market focus — original hand-labeled examples covering NSE, BSE, Sensex, Nifty, RBI decisions, Indian fintech (Paytm, Zomato, PhonePe), and Indian conglomerates (Reliance, Tata, Adani, HDFC)
• Multi-source deduplication — priority-aware deduplication ensures highest-quality copy is retained when the same text appears across sources
• Multilingual context — includes financial terminology specific to the Indian subcontinent not present in standard Western finance NLP datasets
• Live news augmentation — recent business headlines via NewsAPI add temporal diversity beyond static datasets

Label distribution (after cleaning)

positive :  ~35%
negative :  ~33%
neutral  :  ~32%

Balanced across all three classes to prevent label bias.

Data quality improvement via Adaptive Data

Adaption's Adaptive Data pipeline was applied before training:

• Before: Grade E, quality score 2.0, percentile 0.1
• After: Grade B, quality score 8.1, percentile 17.8
• Relative improvement: 305%

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🚀 How to Use

from transformers import AutoTokenizer, AutoModelForCausalLM
from peft import PeftModel

base_model = "mistralai/Mistral-7B-Instruct-v0.3"
lora_model  = "Sashank1006/finance-sentiment-mistral-lora"

tokenizer = AutoTokenizer.from_pretrained(base_model)
model     = AutoModelForCausalLM.from_pretrained(base_model, device_map="auto")
model     = PeftModel.from_pretrained(model, lora_model)
model.eval()

def predict_sentiment(text: str) -> str:
    prompt = f"Classify the sentiment of this financial text as positive, negative, or neutral:\n\n{text}\n\nSentiment:"
    inputs = tokenizer(prompt, return_tensors="pt").to(model.device)
    output = model.generate(**inputs, max_new_tokens=5, do_sample=False)
    result = tokenizer.decode(output[0], skip_special_tokens=True)
    return result.split("Sentiment:")[-1].strip().lower()

# Example
text = "Reliance Industries reported a 23% jump in quarterly profit."
print(predict_sentiment(text))  # → "positive"

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🌍 Real-World Applications

• Retail investor tools — classify financial news before displaying to users
• Trading signal generation — convert news sentiment into bullish/bearish signals
• Portfolio risk monitoring — flag negative sentiment around held stocks
• Indian fintech apps — specifically tuned for Indian market terminology and companies
• News aggregators — auto-tag financial articles by sentiment

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⚠️ Limitations

• Trained primarily on English-language financial text; performance on Hindi/Tamil/regional language finance text will be lower
• Rule-labelled NewsAPI headlines (~500 rows) may contain some label noise
• Model may underperform on highly technical financial derivative or options-specific language
• Sentiment is classified at the sentence/headline level — document-level sentiment aggregation requires additional logic
• The model reflects sentiment patterns in training data up to mid-2026; sentiment around newer entities may be less accurate

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📋 Training Pipeline

Raw data (6 sources, ~120K rows)
        ↓
Merge + deduplicate (prepare_dataset.py)
        ↓
Upload to Adaption Adaptive Data
        ↓
Adaptive Data optimization (Grade E → B, 305% quality improvement)
        ↓
AutoScientist fine-tuning (Mistral-7B-Instruct, LoRA, 4 epochs)
        ↓
Evaluation (Win rate: 44 → 56 on dataset, 40 → 60 on market analysis)
        ↓
Released on HuggingFace + Kaggle

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👥 Team

Team Caribou — HackIndia Adaption AutoScientist Challenge, Finance Track

Built using:

• Adaption AutoScientist — automated model training
• Adaption Adaptive Data — dataset quality optimization
• HuggingFace Datasets — source data
• NewsAPI — live headline augmentation

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📄 Citation

@misc{caribou2026financeSentiment,
  title  = {Finance Sentiment Classifier — Indian Market Focus},
  author = {Team Caribou},
  year   = {2026},
  url    = {https://huggingface.co/YOUR_HF_USERNAME/finance-sentiment-mistral-lora},
  note   = {Built for HackIndia Adaption AutoScientist Challenge}
}

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🔗 Links

• 📦 Dataset: Kaggle — finance-sentiment-india
• 🤗 Model: HuggingFace — finance-sentiment-mistral-lora
• 🎮 Demo: HuggingFace Spaces — Gradio App