diff --git a/core/app/models/spree/stock/quantifier.rb b/core/app/models/spree/stock/quantifier.rb
index 38a669c4bff..322c5a2ab5d 100644
--- a/core/app/models/spree/stock/quantifier.rb
+++ b/core/app/models/spree/stock/quantifier.rb
@@ -43,10 +43,23 @@ def can_supply?(required)
         total_on_hand >= required || backorderable?
       end
 
+      def positive_stock
+        return unless stock_location
+
+        on_hand = stock_location.count_on_hand(variant)
+        on_hand.positive? ? on_hand : 0
+      end
+
       private
 
       attr_reader :variant, :stock_location_or_id
 
+      def stock_location
+        @stock_location ||= stock_location_or_id.is_a?(Spree::StockLocation) ?
+          stock_location_or_id :
+          Spree::StockLocation.find_by(id: stock_location_or_id)
+      end
+
       def get_stock_items
         variant.stock_items.select do |stock_item|
           if stock_location_or_id
diff --git a/core/spec/models/spree/stock/quantifier_spec.rb b/core/spec/models/spree/stock/quantifier_spec.rb
index 4bc01f0d270..51d219f6ce7 100644
--- a/core/spec/models/spree/stock/quantifier_spec.rb
+++ b/core/spec/models/spree/stock/quantifier_spec.rb
@@ -12,6 +12,25 @@ module Stock
           expect(subject.can_supply?(100_001)).to eq true
         end
       end
+
+      shared_examples_for "returns the positive stock on hand" do
+        context "when the stock location has no stock for the variant" do
+          it { is_expected.to be_zero }
+        end
+
+        context "when the stock location has negative stock for the variant" do
+          before { stock_item.set_count_on_hand(-1) }
+
+          it { is_expected.to be_zero }
+        end
+
+        context "when the stock location has positive stock for the variant" do
+          before { stock_item.set_count_on_hand(10) }
+
+          it { is_expected.to eq(10) }
+        end
+      end
+
       let(:target_stock_location) { nil }
       let!(:stock_location) { create :stock_location_with_items }
       let!(:stock_item) { stock_location.stock_items.order(:id).first }
@@ -107,6 +126,35 @@ module Stock
           expect(subject.can_supply?(6)).to eq false
         end
       end
+
+      describe "#positive_stock" do
+        let(:variant) { create(:variant) }
+        let(:stock_location) { create(:stock_location) }
+        let(:stock_item) { stock_location.set_up_stock_item(variant) }
+        let(:instance) { described_class.new(variant, stock_location_or_id) }
+
+        subject { instance.positive_stock }
+
+        context "when stock location is not present" do
+          let(:stock_location_or_id) { nil }
+
+          it { is_expected.to be_nil }
+        end
+
+        context "when stock_location_id is present" do
+          context "when stock_location_id is a stock location" do
+            let(:stock_location_or_id) { stock_location }
+
+            it_behaves_like "returns the positive stock on hand"
+          end
+
+          context "when stock_location_id is a stock location id" do
+            let(:stock_location_or_id) { stock_location.id }
+
+            it_behaves_like "returns the positive stock on hand"
+          end
+        end
+      end
     end
   end
 end