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    天然ガス先物(NG=F)のアノマリー

    天然ガス先物(NG=F) の過去の値動きの傾向（アノマリー）を確認できます。集計年数や期間を指定して、どの時期に上がりやすい・下がりやすいかを把握できます。 詳しい見方や操作方法は、下の「使い方ガイド」からご覧ください。

    使い方ガイドを見る
    月
    日
    指定期間の集計対象:

    天然ガス先物（NG=F）の過去10年の平均年初来騰落率は +7.71%です。

    過去10年で指定期間（11月5日から60日間）の騰落率は -10.51%です。

    1勝5敗で勝率は16.67%です。

    年開始日開始価格終了日終了価格リターン騰落率 (%)
    2024 2024-11-05 2.6700 2025-01-03 3.3540 0.6840 25.62
    2021 2021-11-05 5.5160 2022-01-03 3.8150 -1.7010 -30.84
    2020 2020-11-05 2.9420 2021-01-03 2.5390 -0.4030 -13.70
    2019 2019-11-05 2.8620 2020-01-03 2.1300 -0.7320 -25.58
    2018 2018-11-05 3.5670 2019-01-03 2.9450 -0.6220 -17.44
    2015 2015-11-05 2.3640 2016-01-03 2.3370 -0.0270 -1.14
    平均 3.3202 2.8533 -0.47 -10.51
    365日（前日終値比）平均（過去 15 年平均）［横=月 / 縦=日］
    マイナス ±0%付近 プラス ※ 前年末終値を基準。非営業日は直前値で補完。2/29は除外。
    365日表示の集計対象:
    日\月 1月2月3月4月5月6月7月8月9月10月11月12月
    1日 0.00% -6.38% -8.40% -6.48% +0.42% +3.11% +0.96% +1.71% +8.43% +10.54% +12.39% +15.63%
    2日 +0.41% -4.95% -8.07% -6.16% -0.27% +3.63% +1.15% -0.13% +6.97% +9.89% +13.24% +13.10%
    3日 -0.92% -6.03% -7.50% -6.03% +1.07% +3.85% +1.13% +2.25% +7.85% +9.60% +12.91% +11.62%
    4日 -0.10% -6.07% -5.88% -6.51% +1.92% +3.72% +1.09% +2.27% +7.95% +10.46% +14.41% +11.31%
    5日 -0.95% -6.54% -6.12% -6.26% +2.23% +3.95% -0.12% +1.93% +7.31% +12.77% +14.26% +11.48%
    6日 -0.38% -6.61% -7.02% -6.50% +0.44% +5.65% -0.61% +2.39% +6.09% +11.09% +14.64% +9.21%
    7日 -0.60% -8.45% -7.03% -5.59% +0.53% +5.65% +0.21% +2.98% +5.00% +11.38% +15.16% +8.66%
    8日 +0.11% -8.67% -7.77% -6.23% +0.65% +5.09% +0.10% +2.48% +6.04% +11.15% +13.13% +9.35%
    9日 +0.42% -9.53% -7.56% -5.93% -0.34% +5.45% -0.24% +2.71% +6.51% +11.13% +11.34% +10.28%
    10日 +0.80% -9.86% -6.68% -6.20% +0.50% +5.02% -0.05% +2.63% +6.35% +10.68% +11.66% +10.84%
    11日 +1.77% -9.29% -6.78% -6.27% +0.94% +5.71% +0.74% +3.81% +6.40% +10.74% +12.09% +10.97%
    12日 +3.10% -9.46% -8.17% -5.77% +0.80% +5.53% +0.65% +3.48% +7.98% +11.09% +11.19% +10.47%
    13日 +2.02% -9.22% -7.83% -4.93% +0.62% +4.85% +1.27% +2.72% +8.83% +12.04% +12.45% +10.04%
    14日 +3.58% -8.70% -7.70% -4.96% +0.77% +2.95% +1.23% +3.93% +10.34% +10.89% +13.88% +8.32%
    15日 +3.39% -8.76% -8.48% -5.51% +0.91% +3.69% +1.94% +3.59% +9.58% +10.41% +12.91% +8.85%
    16日 +2.13% -7.70% -8.04% -5.03% +1.22% +3.72% +1.60% +4.11% +8.50% +9.40% +13.33% +7.58%
    17日 +1.45% -7.88% -7.32% -4.75% +2.53% +3.04% +0.87% +3.68% +7.09% +8.76% +12.99% +6.94%
    18日 +0.57% -6.99% -7.73% -3.37% +3.26% +3.37% +2.72% +3.70% +6.74% +6.73% +13.25% +8.19%
    19日 -0.86% -5.56% -7.02% -4.10% +2.81% +2.90% +2.59% +4.16% +6.52% +6.45% +13.97% +6.81%
    20日 -2.01% -5.76% -8.09% -4.06% +3.48% +2.03% +3.84% +3.98% +6.58% +7.39% +14.54% +6.24%
    21日 -1.86% -5.76% -8.17% -4.76% +2.62% +1.89% +3.34% +4.50% +5.26% +6.32% +15.81% +8.14%
    22日 -2.63% -5.71% -8.19% -4.78% +2.72% +1.65% +4.33% +4.70% +3.83% +5.85% +15.00% +7.69%
    23日 -0.97% -6.04% -8.48% -5.31% +3.72% +0.43% +4.22% +4.14% +4.83% +5.96% +16.67% +6.79%
    24日 +0.09% -7.90% -8.05% -6.20% +3.17% +0.83% +3.93% +4.13% +5.40% +6.13% +16.53% +5.95%
    25日 +0.46% -7.82% -7.68% -5.99% +3.27% +0.49% +4.23% +4.44% +5.63% +8.48% +17.27% +5.95%
    26日 +0.95% -8.70% -7.83% -5.70% +3.14% +0.08% +4.21% +5.07% +5.70% +8.01% +17.95% +5.76%
    27日 +3.89% -9.12% -7.23% -4.09% +3.63% +1.66% +2.81% +5.73% +8.53% +7.98% +17.66% +6.78%
    28日 -0.20% -8.34% -7.21% -3.35% +3.62% +2.05% +2.57% +6.59% +9.18% +8.46% +17.82% +5.71%
    29日 -0.06% – -7.52% +0.03% +3.40% +2.74% +2.70% +7.52% +10.61% +9.39% +17.95% +6.03%
    30日 -4.65% – -6.15% +0.46% +3.07% +1.13% +2.78% +7.22% +10.75% +13.12% +16.26% +4.95%
    31日 -5.25% – -6.25% – +2.33% – +2.48% +8.10% – +14.83% – +3.44%

    過去10年の 30日間 [11月5日 ～ 12月4日] の リターンランキング

    順位 銘柄 平均リターン(%) 勝数 負数
    先物 のランキング詳細 »
    ode}）の過去${years}年の平均年初来騰落率は ${annualAverageReturn}%です。

    過去${years}年で指定期間（${formattedStartDate}から${periodLength}日間）の騰落率は ${localAveragePerformance}%です。

    ${wins}勝${losses}敗で勝率は${winRate}%です。

    `; const performanceTableBody = document.getElementById('performance-table-body'); performanceTableBody.innerHTML = ''; let currentYearDataset = null; if (includeCurrentYear) { const currentYear = new Date(settings.startDate).getFullYear(); currentYearDataset = datasets.find(d => d.year === currentYear); if (currentYearDataset) { for (let i = 0; i < datasets.length; i++) { if (datasets[i].year === currentYear) { datasets.splice(i, 1); break; } } } } if (currentYearDataset) { insertDatasetRow(currentYearDataset, 'top'); } datasets.forEach(dataset => { insertDatasetRow(dataset, 'bottom'); }); // 平均行追加 const summaryRow = document.createElement('tr'); const summaryCells = [ { text: '平均', bold: true }, { text: '', bold: true }, { text: formatAveragePrice(averageStartPrice), bold: true }, { text: '', bold: true }, { text: formatAveragePrice(averageEndPrice), bold: true }, { text: averageReturn.toFixed(2), bold: true }, { text: localAveragePerformance, bold: true } ]; summaryCells.forEach((cellData, index) => { const cell = document.createElement('td'); cell.textContent = cellData.text; if (cellData.bold) { cell.style.fontWeight = 'bold'; } summaryRow.appendChild(cell); }); const avgReturnVal = parseFloat(averageReturn); const avgPerfVal = parseFloat(localAveragePerformance); const avgEndPriceCell = summaryRow.cells[4]; if (!isNaN(avgReturnVal)) { if (avgReturnVal > 0) { avgEndPriceCell.classList.add('table-cell', 'positive'); summaryRow.cells[5].classList.add('table-cell', 'positive'); } else if (avgReturnVal < 0) { avgEndPriceCell.classList.add('table-cell', 'negative'); summaryRow.cells[5].classList.add('table-cell', 'negative'); } else { avgEndPriceCell.classList.add('table-cell', 'neutral'); summaryRow.cells[5].classList.add('table-cell', 'neutral'); } } if (!isNaN(avgPerfVal)) { if (avgPerfVal > 0) { summaryRow.cells[6].classList.add('table-cell', 'positive'); } else if (avgPerfVal < 0) { summaryRow.cells[6].classList.add('table-cell', 'negative'); } else { summaryRow.cells[6].classList.add('table-cell', 'neutral'); } } performanceTableBody.appendChild(summaryRow); if (!multiYearChart) { const chartDom = document.getElementById('multiYearChart'); if (chartDom) { multiYearChart = echarts.init(chartDom, 'customTheme'); } } // 表示モードに応じてシリーズを作成 const series = datasets.map(dataset => ({ name: dataset.year.toString(), type: 'line', data: displayMode === 'price' ? dataset.prices : dataset.rates, showSymbol: false, smooth: true, connectNulls: false })); if (currentYearDataset) { series.unshift({ name: currentYearDataset.year.toString(), type: 'line', data: displayMode === 'price' ? currentYearDataset.prices : currentYearDataset.rates, showSymbol: false, smooth: true, connectNulls: false }); } let xAxisData = []; if (currentYearDataset && currentYearDataset.dates) { xAxisData = currentYearDataset.dates.slice(); } datasets.forEach(d => { if (d.dates && d.dates.length > xAxisData.length) { xAxisData = d.dates; } }); // 全データセットの平均を計算 const averageData = []; for (let i = 0; i < xAxisData.length; i++) { let sum = 0; let count = 0; if (displayMode === 'price') { // 価格モードの場合 if (currentYearDataset && currentYearDataset.prices[i] != null && !isNaN(currentYearDataset.prices[i])) { sum += currentYearDataset.prices[i]; count++; } for (let d of datasets) { if (d.prices[i] != null && !isNaN(d.prices[i])) { sum += d.prices[i]; count++; } } } else { // 騰落率モードの場合 if (currentYearDataset && currentYearDataset.rates[i] != null && !isNaN(currentYearDataset.rates[i])) { sum += currentYearDataset.rates[i]; count++; } for (let d of datasets) { if (d.rates[i] != null && !isNaN(d.rates[i])) { sum += d.rates[i]; count++; } } } averageData.push(count > 0 ? sum / count : NaN); } // 平均線をシリーズに追加 series.unshift({ name: '平均', type: 'line', data: averageData, showSymbol: false, smooth: true, lineStyle: { width: 4 }, connectNulls: false }); const isLongLegend = (datasets.length + (currentYearDataset ? 1 : 0)) >= 11; // タイトルとY軸の設定を表示モードに応じて変更 const chartTitle = displayMode === 'price' ? `${serverData.companyName}の指定期間価格推移（過去${years}年間の推移）` : `${serverData.companyName}の指定期間騰落率（過去${years}年間の推移）`; const yAxisFormatter = displayMode === 'price' ? function(value) { return formatAveragePrice(value); } : function(value) { return `${value}%`; }; const tooltipFormatter = function(params) { if (!params || params.length === 0) return ''; const dateStr = dayjs(params[0].axisValue).format('MM月DD日'); let tooltipText = `${dateStr}
    `; params.forEach(param => { let value = param.value; if (displayMode === 'price') { value = formatAveragePrice(value); tooltipText += `
    ${param.marker} ${param.seriesName}: ${value}
    `; } else { if (typeof value === 'number') { value = value.toFixed(2); } tooltipText += `
    ${param.marker} ${param.seriesName}: ${value}%
    `; } }); return tooltipText; }; const legendData = ['平均']; if (currentYearDataset) legendData.push(String(currentYearDataset.year)); legendData.push(...datasets.map(d => String(d.year))); const option = { grid: { top: '15%', left: '13%', right: '8%', bottom: '25%' }, title: { text: chartTitle, subtext: `集計期間: ${dayjs(settings.startDate).format('M/D')}～${dayjs(calculatePeriodEndDate(settings.startDate, periodLength)).format('M/D')}（${periodLength}日間）`, left: 'center', top: '5%', textStyle: { fontSize: fontSize }, subtextStyle: { fontSize: fontSize } }, tooltip: { trigger: 'axis', textStyle: { fontSize: fontSize + 2 }, formatter: tooltipFormatter }, legend: { data: series.map(s => s.name), formatter: function(name) { if (isLongLegend && name.length === 4 && name !== '平均') { return name.slice(-2); } return name; }, bottom: '5%', orient: 'horizontal', left: 'center', itemWidth: 10, itemHeight: 10, itemGap: 4, textStyle: { fontSize: fontSize }, width: '80%', pageIconColor: '#5470C6', pageIconInactiveColor: '#aaa', pageTextStyle: { color: '#5470C6', fontSize: fontSize }, pageButtonItemGap: 5, pageButtonGap: 5, backgroundColor: 'rgba(255, 255, 255, 0.8)', borderColor: '#ccc', borderWidth: 1, borderRadius: 4, padding: [5, 10] }, xAxis: { type: 'category', data: xAxisData, axisLabel: { fontSize: fontSize, formatter: function(value) { return dayjs(value).format('MM月DD日'); }, align: 'right', verticalAlign: 'middle', margin: 10 }, axisTick: { alignWithLabel: true }, axisLine: { lineStyle: { color: '#333' } }, splitLine: { show: true, lineStyle: { type: 'dashed', color: '#eee' } } }, yAxis: { type: 'value', axisLabel: { formatter: yAxisFormatter, fontSize: fontSize }, scale: true }, series: series, graphic: [commonGraphic] }; multiYearChart.setOption(option, { notMerge: true }); } updateFontSize(); initializeTimezoneSelector(); if (!storedStartDateUnified || !storedEndDateUnified) { const now = new Date(); const oneYearAgo = new Date(); oneYearAgo.setFullYear(oneYearAgo.getFullYear() - 1); startDateUnifiedInput.value = formatDateLocal(oneYearAgo); endDateUnifiedInput.value = formatDateLocal(now); localStorage.setItem('startDateUnified', startDateUnifiedInput.value); localStorage.setItem('endDateUnified', endDateUnifiedInput.value); } drawMonthDayChart(); drawMultiYearChart(); drawIntradayChart(); if (!storedStartDateUnified || !storedEndDateUnified) { updateUnifiedDatesFromPeriod(); } updateUnifiedCharts(); }); // 残りの関数（shareChart、sanitizeForHashtag、getTweetText）はそのまま function shareChart(chartId) { // 既存のコードをそのまま使用 const code = "NG=F" || document.getElementById('stock-search').value.trim(); let rangeOrDates = {}; if (chartId === 'intradayChart') { rangeOrDates.range = localStorage.getItem('intradayChartRange') || '60d'; } else if (chartId === 'multiYearChart') { rangeOrDates.years = settings.years; rangeOrDates.period = settings.period; rangeOrDates.displayMode = settings.displayMode; } else if (chartId === 'monthDayChart') { rangeOrDates.years = settings.years; rangeOrDates.displayMode = settings.displayMode; } else { const startDateElement = document.getElementById('startDateUnified'); const endDateElement = document.getElementById('endDateUnified'); const selectedMonthElement = document.getElementById('monthSelectUnified'); const startDate = startDateElement ? startDateElement.value : ''; const endDate = endDateElement ? endDateElement.value : ''; const selectedMonth = selectedMonthElement ? selectedMonthElement.value : ''; rangeOrDates.startDate = startDate; rangeOrDates.endDate = endDate; if (selectedMonth) { rangeOrDates.month = selectedMonth; } } const tweetText = getTweetText(chartId, serverData.companyName, code, rangeOrDates); let fileName = ''; if (chartId === 'intradayChart') { fileName = `${chartId}_${code}_${rangeOrDates.range}.png`; } else if (chartId === 'multiYearChart') { fileName = `${chartId}_${code}_years${rangeOrDates.years}_period${rangeOrDates.period}_${rangeOrDates.displayMode}.png`; } else if (chartId === 'monthDayChart') { fileName = `${chartId}_${code}_years${rangeOrDates.years}_${rangeOrDates.displayMode}.png`; } else { fileName = `${chartId}_${code}_${rangeOrDates.startDate}_${rangeOrDates.endDate}.png`; } const offScreenDiv = document.createElement('div'); offScreenDiv.style.width = '600px'; offScreenDiv.style.height = '314px'; offScreenDiv.style.position = 'absolute'; offScreenDiv.style.left = '-9999px'; offScreenDiv.style.top = '0'; offScreenDiv.style.backgroundColor = '#fff'; document.body.appendChild(offScreenDiv); const offScreenChartContainer = document.createElement('div'); offScreenChartContainer.style.width = '600px'; offScreenChartContainer.style.height = '314px'; offScreenDiv.appendChild(offScreenChartContainer); const originalChartElement = document.getElementById(chartId); const originalChartInstance = echarts.getInstanceByDom(originalChartElement); if (!originalChartInstance) { document.body.removeChild(offScreenDiv); return; } const chartOption = originalChartInstance.getOption(); const fixedFontSize = 13; function setFixedFontSize(obj, fixedFontSize) { for (const key in obj) { if (obj.hasOwnProperty(key)) { if (key === 'graphic') { continue; } if (key === 'fontSize') { obj[key] = fixedFontSize; } else if (typeof obj[key] === 'object' && obj[key] !== null) { setFixedFontSize(obj[key], fixedFontSize); } } } } setFixedFontSize(chartOption, fixedFontSize); const offScreenChartInstance = echarts.init(offScreenChartContainer, null, { width: 600, height: 314, }); offScreenChartInstance.setOption(chartOption); offScreenChartInstance.on('finished', function() { const imageData = offScreenChartInstance.getDataURL({ type: 'png', pixelRatio: 1, backgroundColor: '#fff', }); document.body.removeChild(offScreenDiv); fetch('/jp/upload.php', { method: 'POST', headers: { 'Content-Type': 'application/x-www-form-urlencoded', }, body: `image=${encodeURIComponent(imageData)}&filename=${encodeURIComponent(fileName)}` }) .then(response => response.json()) .then(data => { let shareUrl = `https://anomalybase.com/jp/chart/${encodeURIComponent(code)}?chart=${chartId}`; if (chartId === 'intradayChart') { shareUrl += `&range=${encodeURIComponent(rangeOrDates.range)}`; } else if (chartId === 'multiYearChart') { shareUrl += `&years=${encodeURIComponent(rangeOrDates.years)}&period=${encodeURIComponent(rangeOrDates.period)}&displayMode=${encodeURIComponent(rangeOrDates.displayMode)}`; } else if (chartId === 'monthDayChart') { shareUrl += `&years=${encodeURIComponent(rangeOrDates.years)}&displayMode=${encodeURIComponent(rangeOrDates.displayMode)}`; } else { shareUrl += `&startDate=${encodeURIComponent(rangeOrDates.startDate)}&endDate=${encodeURIComponent(rangeOrDates.endDate)}`; if (rangeOrDates.month) { shareUrl += `&month=${encodeURIComponent(rangeOrDates.month)}`; } } if (data.url) { shareUrl += `&imageUrl=${encodeURIComponent(data.url)}`; } const twitterUrl = `https://twitter.com/intent/tweet?text=${encodeURIComponent(tweetText)}&url=${encodeURIComponent(shareUrl)}`; window.open(twitterUrl, '_blank'); }) .catch(error => { let shareUrl = `https://anomalybase.com/jp/chart/${encodeURIComponent(code)}?chart=${chartId}`; if (chartId === 'intradayChart') { shareUrl += `&range=${encodeURIComponent(rangeOrDates.range)}`; } else if (chartId === 'multiYearChart') { shareUrl += `&years=${encodeURIComponent(rangeOrDates.years)}&period=${encodeURIComponent(rangeOrDates.period)}&displayMode=${encodeURIComponent(rangeOrDates.displayMode)}`; } else if (chartId === 'monthDayChart') { shareUrl += `&years=${encodeURIComponent(rangeOrDates.years)}&displayMode=${encodeURIComponent(rangeOrDates.displayMode)}`; } else { shareUrl += `&startDate=${encodeURIComponent(rangeOrDates.startDate)}&endDate=${encodeURIComponent(rangeOrDates.endDate)}`; if (rangeOrDates.month) { shareUrl += `&month=${encodeURIComponent(rangeOrDates.month)}`; } } const twitterUrl = `https://twitter.com/intent/tweet?text=${encodeURIComponent(tweetText)}&url=${encodeURIComponent(shareUrl)}`; window.open(twitterUrl, '_blank'); }); }); } function sanitizeForHashtag(companyName) { let sanitized = companyName.trim(); sanitized = sanitized.replace(/\s+/g, ''); sanitized = sanitized.replace(/[^\p{L}\p{N}_ー]/gu, ''); sanitized = sanitized.replace(/^_+/, ''); sanitized = sanitized.replace(/_+$/, ''); if (sanitized.length > 0 && sanitized[0] !== '#') { sanitized = '#' + sanitized; } if (sanitized.length === 0) { sanitized = '#AnomalyBase'; } return sanitized; } function getTweetText(chartId, companyName, code, rangeOrDates) { const hashtag = sanitizeForHashtag(companyName); let tweetText = ""; const displayModeText = rangeOrDates.displayMode === 'price' ? '価格推移' : '騰落率'; switch(chartId) { case 'monthDayChart': tweetText = `${companyName}の年間アノマリー(${code}) ${hashtag}`; break; case 'weekdayChart': tweetText = `${companyName}の曜日別アノマリー(${code}) ${hashtag}`; break; case 'dailyAverageChart': tweetText = `${companyName}の日別アノマリー(${code}) ${hashtag}`; break; case 'intradayChart': tweetText = `${companyName}の日中アノマリー(${code}) ${hashtag}`; break; case 'multiYearChart': tweetText = `${companyName}の過去${rangeOrDates.years}年の各年の${displayModeText} (${rangeOrDates.period}日間) ${hashtag}`; break; default: tweetText = `${companyName}のアノマリー(${code}) ${hashtag}`; } return tweetText; }